Math Calculators

2×2 & 3×3 Matrix Determinant 2×2 & 3×3 Matrix Determinant is a mathematics calculator that helps you calculate 2×2 & 3×3 matrix determinant values from your input data. The formula used is: 2×2: det = ad−bc · 3×3: det = a(ei−fh)−b(di−fg)+c(dh−eg). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Absolute Value Calculator This absolute value calculator returns |x|, the distance of a number from zero, which is always zero or positive. Enter a single number to get its magnitude and sign, and enter two numbers a and b to see the absolute value of their sum, difference, product, and quotient, plus the distance |a − b| between them on the number line. Absolute Value Equation Solver This absolute value equation solver finds the values of x that satisfy |ax + b| = c. Enter the coefficient a, the constant b, and the right-hand side c, and it splits the equation into its two cases - ax + b = c and ax + b = −c - then solves each for x. It only returns solutions when c ≥ 0, because an absolute value can never equal a negative number, and it verifies each answer for you. Absolute Value Inequalities Calculator This absolute value inequality calculator checks whether a number x satisfies |x| ≤ a, the most common form of absolute value inequality. Enter your value x and the bound a, and it tells you whether x lies within the interval −a ≤ x ≤ a. Geometrically, |x| ≤ a means x is no farther than a from zero on the number line. Add and Subtract Polynomials Calculator The Add and Subtract Polynomials Calculator combines two quadratic polynomials of the form ax² + bx + c by adding or subtracting like terms. Enter the coefficients of each polynomial, choose the operation, and it returns the resulting polynomial with its coefficients collected. Antilog Calculator The Antilog Calculator reverses a logarithm: given a log value and its base, it finds the original number. Taking the antilog is the same as raising the base to the power of the log value. The formula used is: antilog = base^(log value). Arithmetic Sequence Calculator Work with an arithmetic sequence — a list of numbers that increases or decreases by a fixed common difference. Enter the first term, the common difference, and how many terms you want, and the calculator returns the nth term aₙ = a₁ + (n−1)d and the sum of the first n terms Sₙ = n⁄2 × (2a₁ + (n−1)d), along with a preview of the opening terms. Average Rate of Change Calculator The Average Rate of Change Calculator finds how fast a function changes between two points. Enter the two x-values and their function values f(x), and you get the average rate of change — the slope of the straight line (secant) connecting the two points. It answers “on average, how much does y change for each unit increase in x?” Binomial Expansion Calculator Expand (a + b)^n using the binomial theorem. Enter the two terms a and b and the power n, and this calculator lists every term, the numerical value, the matching row of Pascal's triangle, and the term count. Combinatorics Calculator Combinatorics Calculator is a mathematics calculator that helps you calculate combinatorics values from your input data. The formula used is: P(n,r)=n!/(n−r)! · C(n,r)=n!/(r!(n−r)!) · nʳ · C(n+r−1,r) · D(n)≈round(n!/e). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Completing the Square Calculator Completing the Square Calculator is a mathematics calculator that helps you calculate completing the square values from your input data. The formula used is: ax²+bx+c = a(x+b/(2a))² − b²/(4a) + c · h = −b/(2a), k = c−b²/(4a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Completing the Square Calculator The Completing the Square Calculator rewrites a quadratic ax² + bx + c in vertex form a(x + d)² + e, which is the key step for integrating or finding the vertex. Enter a, b and c. Cross Multiplication Cross Multiplication — solve proportions of the form a/b = c/d. Given any three values, find the fourth. Cubic Equation Solver Solve cubic equations of the form ax³ + bx² + cx + d = 0. Finds all real and complex roots. Descartes' Rule of Signs Calculator The Descartes' Rule of Signs Calculator counts the sign changes in a polynomial's coefficients to bound the number of positive and negative real roots. Enter the coefficients from highest degree to constant, comma-separated. Diamond Problem Solver The Diamond Problem Solver finds two numbers given their product and sum — the core of the factoring diamond method. Enter the product (top) and sum (bottom). Direct Variation Calculator The Direct Variation Calculator finds the constant of variation k from a known pair (x, y) using y = kx, then predicts y for a new x. Enter a known x and y and the new x. Discriminant Calculator The Discriminant Calculator finds b² − 4ac for a quadratic ax² + bx + c and tells you the nature of its roots. Enter the coefficients a, b, and c. Distributive Property Calculator The Distributive Property Calculator expands a(b + c) into ab + ac and computes the result. Enter the three values. Dividing Exponents Calculator The Dividing Exponents Calculator applies the quotient rule for powers of the same base: subtract the exponents. Enter the base and both exponents. Dividing Radicals Calculator The Dividing Radicals Calculator divides one square-root expression by another using the quotient rule for radicals, and gives the simplified decimal result. Enter the coefficients and radicands. Exponent & Power Calculator Exponent & Power Calculator is a mathematics calculator that helps you calculate power output from energy and time. The formula used is: result = base^exponent · Scientific: c × 10^n · nth root = result^(1/n). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Factorial Calculator Factorial Calculator is a mathematics calculator that helps you calculate factorial values from your input data. The formula used is: n! = 1×2×…×n · P(n,r) = n!/(n−r)! · C(n,r) = n!/(r!(n−r)!). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Fraction & Rational Number Calculator Fraction & Rational Number Calculator is a mathematics calculator that helps you calculate the ratio between two numbers in simplified form. The formula used is: Add: (n₁d₂+n₂d₁)/(d₁d₂) · Subtract: (n₁d₂−n₂d₁)/(d₁d₂) · Multiply: n₁n₂/(d₁d₂) · Divide: n₁d₂/(d₁n₂) · Simplify by GCD. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Function Composition Calculator Function Composition Calculator is a mathematics calculator that helps you calculate function composition values from your input data. The formula used is: f(x)=ax+b · g(x)=ax²+b · (f∘g)(x)=f(g(x)) · (g∘f)(x)=g(f(x)) · f⁻¹(x)=(x−b)/a. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. GCF & LCM Calculator GCF & LCM Calculator is a mathematics calculator that helps you calculate gcf & lcm values from your input data. The formula used is: GCF via Euclidean algorithm · LCM(a,b) = a×b / GCF(a,b) · GCF(a,b,c) = GCF(GCF(a,b),c). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Geometric Sequence Calculator Geometric Sequence Calculator is a mathematics calculator that helps you calculate geometric sequence values from your input data. The formula used is: aₙ = a₁ × rⁿ⁻¹ · Sₙ = a(rⁿ−1)/(r−1) · S∞ = a/(1−r) when |r|<1. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Linear Inequality Solver Linear Inequality Solver is a mathematics calculator that helps you calculate linear inequality solver values from your input data. The formula used is: ax + b < c → ax < c − b → x < (c−b)/a (flip sign if a < 0). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Logarithm Calculator Logarithm Calculator is a mathematics calculator that helps you calculate logarithm values from your input data. The formula used is: log_b(x) = ln(x)/ln(b) · ln(x) = natural log · log₁₀(x) = common log · antilog = b^(log_b(x)). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Matrix 2×2 Multiplication Matrix 2×2 Multiplication is a mathematics calculator that helps you calculate a gratuity amount and total bill from a pre-tax amount. The formula used is: C = A×B: c₁₁=a₁₁b₁₁+a₁₂b₂₁ · c₁₂=a₁₁b₁₂+a₁₂b₂₂ · c₂₁=a₂₁b₁₁+a₂₂b₂₁ · c₂₂=a₂₁b₁₂+a₂₂b₂₂. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Midpoint Formula Calculator Midpoint Formula Calculator is a mathematics calculator that helps you calculate midpoint formula values from your input data. The formula used is: M = ((x₁+x₂)/2, (y₁+y₂)/2) · d = √((x₂−x₁)²+(y₂−y₁)²) · slope = (y₂−y₁)/(x₂−x₁) · m_⊥ = −1/m. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Modulo Calculator Modulo Calculator is a mathematics calculator that helps you calculate modulo values from your input data. The formula used is: remainder = a mod b = a − b × floor(a/b) · Mathematical modulo = ((a % b) + b) % b. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Natural Logarithm (ln) Calculator Natural Logarithm (ln) Calculator is a mathematics calculator that helps you calculate natural logarithm (ln) values from your input data. The formula used is: ln(x) = logₑ(x) · e^(ln(x)) = x · ln(e) = 1 · ln(1) = 0. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Nth Root Calculator Nth Root Calculator is a mathematics calculator that helps you calculate nth root values from your input data. The formula used is: ⁿ√x = x^(1/n) · √x = x^0.5 · ∛x = x^(1/3) · ∜x = x^0.25. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Number Base Converter Number Base Converter is a mathematics calculator that helps you calculate a measurement from one unit to an equivalent in another unit. The formula used is: Convert to decimal: parseInt(n, fromBase) · Convert from decimal: n.toString(toBase). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Perfect Square Trinomial Calculator Perfect Square Trinomial Calculator — expand (a±b)² or factor perfect square trinomials (a²±2ab+b²). Polynomial Evaluator Polynomial Evaluator is a mathematics calculator that helps you calculate polynomial evaluator values from your input data. The formula used is: f(x)=ax³+bx²+cx+d · f′(x)=3ax²+2bx+c · f″(x)=6ax+2b · Newton: xₙ₊₁=xₙ−f(xₙ)/f′(xₙ). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Polynomial Evaluator & Grapher Evaluate polynomial f(x)=ax³+bx²+cx+d at given x. Formula: f(x)=ax³+bx²+cx+d. Polynomial Factoring Calculator Polynomial Factoring Calculator is a mathematics calculator that helps you calculate polynomial factoring values from your input data. The formula used is: Roots via quadratic formula; (x − r₁)(x − r₂) = 0 · GCF via Euclidean algorithm · LCM = |a×b|/GCF. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Polynomial Synthetic Division Synthetic Division for polynomials. Formula: Divide ax³+bx²+cx+d by (x−k) using synthetic division algorithm. Power of a Power (Exponent Rule) Simplify (a^m)^n = a^(m×n) using the power rule. Powers of 10 Calculator Powers of 10 is a fast, free math calculator. Enter Exponent (n) to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Powers of 2 Calculator Calculate 2 raised to a power: 2^n (binary powers). Prime Factorization Calculator Prime Factorization Calculator is a mathematics calculator that helps you calculate prime factorization values from your input data. The formula used is: Trial division up to √n · σ₀(n) = Π(eᵢ+1) · σ₁(n) = Π((pᵢ^(eᵢ+1)−1)/(pᵢ−1)). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Prime Number Checker & Generator Prime Number Checker & Generator is a mathematics calculator that helps you calculate prime number checker & generator values from your input data. The formula used is: Trial division up to √n: n is prime if no divisor found · Nearest primes by sequential search. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Proportion & Cross Multiplication Proportion & Cross Multiplication is a mathematics calculator that helps you calculate a gratuity amount and total bill from a pre-tax amount. The formula used is: a/b = c/d → d = b×c/a · Cross check: a×d = b×c. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Quadratic Formula Calculator Quadratic Formula Calculator is a mathematics calculator that helps you calculate quadratic formula values from your input data. The formula used is: x = (−b ± √(b²−4ac)) / (2a) · Discriminant = b²−4ac · Vertex: x = −b/(2a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Radical Simplification Simplify square radicals. Formula: √(a²b) = a√b. Extracts perfect squares from radicand. Educational algebra tool. Ratio Of 3 Numbers Calculator Simplify a ratio of 3 numbers. Formula: A:B:C (simplified using GCD). Rational Exponents Calculator Calculate powers with fractional exponents. Formula: base^(m/n) = ⁿ√(base^m). Example: 8^(2/3) = ³√(8²) = 4. Rational Zeros Theorem Calculator Find possible rational zeros using Rational Root Theorem. Candidates = ±(factors of constant) / (factors of leading coefficient). Rationalize Denominator Calculator Rationalize fractions with square roots in denominator. Multiply by conjugate to eliminate radicals. Reverse FOIL (Factoring) Calculator Factor a quadratic expression ax² + bx + c into (mx + n)(px + q). Reverse FOIL method. Set & Interval Notation Calculator Set & Interval Notation Calculator is a mathematics calculator that helps you calculate set & interval notation values from your input data. The formula used is: A∪B = [min(a,c), max(b,d)] (if overlapping) · A∩B = [max(a,c), min(b,d)] · A−B = A excluding A∩B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Slope-Intercept Form Calculator Slope-Intercept Form Calculator is a mathematics calculator that helps you calculate slope-intercept form values from your input data. The formula used is: m = (y₂−y₁)/(x₂−x₁) · b = y₁ − m×x₁ · y = mx + b. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. System of Linear Equations Solver System of Linear Equations Solver is a mathematics calculator that helps you calculate system of linear equations solver values from your input data. The formula used is: Cramer's Rule: D = a₁b₂ − a₂b₁ · x = (c₁b₂ − c₂b₁)/D · y = (a₁c₂ − a₂c₁)/D. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

2D Distance Calculator This 2D distance calculator finds the straight-line distance between two points (x₁, y₁) and (x₂, y₂) on a plane. It uses the distance formula, which is just the Pythagorean theorem applied to the horizontal and vertical gaps between the points: Distance = √[(x₂ − x₁)² + (y₂ − y₁)²]. Enter the coordinates of both points to get the exact length of the segment joining them. 3 Sides Triangle Area Calculator This calculator finds the area of a triangle from the lengths of its three sides using Heron's formula. Enter sides a, b, and c, and it computes the semi-perimeter s = (a + b + c) / 2 and then the area A = √[s(s − a)(s − b)(s − c)]. It is the go-to method when you know all three sides but have no height or angle to work with. 3D Box Diagonal Calculator This 3D box diagonal calculator finds the space diagonal of a rectangular box (cuboid) from its length, width, and height, along with the three face diagonals. The space diagonal is the longest straight line that fits inside the box, running corner to opposite corner, and is found by extending the Pythagorean theorem into three dimensions. 3D Distance Calculator This 3D distance calculator finds the straight-line distance between two points (x₁, y₁, z₁) and (x₂, y₂, z₂) in space. It extends the Pythagorean theorem to three dimensions: Distance = √[(x₂ − x₁)² + (y₂ − y₁)² + (z₂ − z₁)²]. Enter the coordinates of both points to get the exact length of the segment that joins them. 3D Object Scaling Calculator 3D Object Scaling Calculator is a mathematics calculator that helps you calculate 3d object scaling values from your input data. The formula used is: V_new = V₀×sx×sy×sz; A_new ≈ A₀×(sx×sy+sx×sz+sy×sz)/3; Linear avg = (sx+sy+sz)/3. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. 3D Packing Efficiency Calculator 3D Packing Efficiency Calculator is a mathematics calculator that helps you calculate 3d packing efficiency values from your input data. The formula used is: Simple cubic: rows=⌊L/2r⌋; cols=⌊W/2r⌋; layers=⌊H/2r⌋; Efficiency = N×(4/3)πr³ / (L×W×H) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. 3D Vector Angle Calculator 3D Vector Angle Calculator is a mathematics calculator that helps you calculate 3d vector angle values from your input data. The formula used is: θ = arccos(v₁·v₂ / (|v₁||v₂|)); |v×w| = √((y1z2−z1y2)²+(z1x2−x1z2)²+(x1y2−y1x2)²). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. AAS Triangle Calculator This AAS triangle calculator solves a triangle in the angle-angle-side case, where you know two angles and a side that is not between them. Enter Side A together with the two angles, and the calculator finds the third angle and the missing side. Because a triangle's angles always sum to 180°, the third angle is 180° minus the two you entered; the law of sines, a / sin(A) = b / sin(B), then gives the unknown side. ABC Triangle Calculator This ABC triangle calculator works out the perimeter and area of a triangle from its three side lengths a, b, and c. The perimeter is simply a + b + c, and the area comes from Heron's formula, A = √[s(s − a)(s − b)(s − c)], where s is the semi-perimeter (a + b + c) / 2. It is the quickest way to size up a triangle when you know its sides but not its height or angles. Acute Triangle Calculator The Acute Triangle Calculator uses the law of cosines to find the angle opposite side A from the three side lengths, then tells you whether that angle is acute. An acute triangle has all three angles below 90°. Enter the three sides to check angle A. Angle Converter (Degrees to Radians) The Angle Converter changes an angle from degrees to radians. It multiplies the degree value by π/180, since a full 360° turn equals 2π radians. The formula used is: radians = degrees × (π ÷ 180). Annulus (Ring) Calculator The Annulus (Ring) Calculator finds the area, circumferences, and width of a ring — the region between two concentric circles. Enter the outer and inner radii and it returns all the key measurements of the ring. The formulas used are: area = π(R² − r²); outer circumference = 2πR; inner circumference = 2πr; width = R − r. Apothem of Regular Polygon Calculator The Apothem of Regular Polygon Calculator finds the apothem — the distance from the center to the midpoint of a side — of a regular polygon, then uses it to compute the perimeter and area. The formula used is: Apothem = s / (2×tan(π/n)); Area = (perimeter × apothem) / 2 = (n×s×apothem)/2. Arc Length Calculator The Arc Length Calculator finds the length of a circular arc from the circle's radius and the central angle. The formula used is: Arc length = r × θ (with θ in radians) = r × angle × π/180; Fraction of circle = angle/360. Area of a Circle Calculator Find the area of a circle from its radius using A = π × r². The area is the flat space enclosed by the circle, measured in square units. Enter the radius and the calculator returns the area, scaling with the square of the radius — so doubling the radius quadruples the area. Area of a Hemisphere Calculator Find the total surface area of a hemisphere from its radius. A solid hemisphere has a curved surface of 2πr² plus a flat circular base of πr², so the total surface area is 3πr². Enter the radius and you get both the curved and total areas in the same square units. Area of a Trapezoid Calculator Find the area of a trapezoid from its two parallel sides and the perpendicular height using A = ½ × (a + b) × h. A trapezoid has one pair of parallel sides (the bases a and b); the height is the straight-line distance between them. Enter the two bases and the height to get the area in square units. Area of an Oblique Triangle Calculator The Area of an Oblique Triangle Calculator finds the area of any triangle that is not right-angled, using two sides and the angle between them. The formula used is: Area = ½ × a × b × sin(C), where a and b are two sides and C is the included angle. Area of an Obtuse Triangle Calculator The Area of an Obtuse Triangle Calculator finds the area of a triangle that has one angle greater than 90°. Enter the base and the corresponding height, or use the side-angle-side form. The formula used is: Area = ½ × base × height. Area Unit Converter The Area Unit Converter changes an area value between square meters, square centimeters, square feet, square inches, acres, and hectares. It converts to square meters first, then to the target unit. Factors: 1 ft² = 0.0929 m², 1 acre = 4046.86 m², 1 hectare = 10,000 m². ASA Triangle Calculator Solve a triangle from the angle-side-angle (ASA) case: two angles and the side between them. Enter angle A, angle B, and the included side c, and the calculator finds the third angle, the remaining two sides (using the law of sines), and the area. It works for any valid triangle whose two given angles add to less than 180°. Base of a Triangle Calculator Find the base of a triangle when you know its area and height. Rearranging the standard area formula (Area = ½ × base × height) gives base = 2 × area ÷ height. Enter the area and the perpendicular height and the calculator returns the matching base length. Box Net Area Calculator Work out the surface area of a rectangular box (cuboid) and how much wrapping paper and ribbon you need to gift-wrap it. Enter the length, width, and height to see the total surface area, paper with overlap, and ribbon length. Capsule Calculator Calculate the volume and surface area of a capsule (a cylinder with a hemispherical cap on each end — the classic pill shape). Enter the radius and the cylinder height, and this calculator returns the volume, surface area, and total height. Chord Length Calculator Chord Length Calculator is a mathematics calculator that helps you calculate chord length values from your input data. The formula used is: Chord = 2r·sin(θ/2); Sagitta = r − r·cos(θ/2); Arc = r×θ_rad; Distance from center = r·cos(θ/2). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Area and Circumference Circle Area and Circumference is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π×r²; Circumference = 2π×r; Diameter = 2r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Properties Calculator Calculate circle properties from radius: area and circumference. Area = π × r²; Circumference = 2π × r. Circle Sector Calculator Circle Sector Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Arc length = r×θ; Area = r²θ/2; Chord = 2r·sin(θ/2); Perimeter = arc + 2r (where θ is in radians). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Segment Calculator Circle Segment Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Segment area = Sector area − Triangle area; Sector area = (θ/360)×π×r²; Triangle area = ½×r²×sin(θ); Chord = 2r·sin(θ/2); Arc = r×θ_rad. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cone Calculator Cone Calculator is a mathematics calculator that helps you calculate cone values from your input data. The formula used is: l = √(r²+h²); V = (1/3)πr²h; Lateral = πrl; Total = πr(r+l). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cone from Slant Height Cone from Slant Height is a mathematics calculator that helps you calculate height measurements or conversions between unit systems. The formula used is: h = √(l²−r²); V = (1/3)πr²h; Lateral = πrl; Total = πr(r+l). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cone Radius from Volume Find cone radius given volume. Formula: r = √(3V/(πh)). Solve for base radius from volume and height. Conic Section Identifier Calculator The Conic Section Identifier classifies a general second-degree equation as an ellipse, parabola, or hyperbola using the discriminant B² − 4AC. Enter the coefficients A, B, and C. Coordinate Grid Calculator The Coordinate Grid Calculator finds the distance, midpoint, and slope between two points on the coordinate plane. Enter the coordinates of both points. Cross Sectional Area Calculator Calculate the cross-sectional area of common shapes. Useful in engineering, physics, and material science for analyzing wire gauge, pipe dimensions, and structural properties. Cube Calculator Cube Calculator is a mathematics calculator that helps you calculate cube values from your input data. The formula used is: V = s³; SA = 6s²; Face diagonal = s√2; Space diagonal = s√3. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cube Volume Calculator Calculate the volume of a cube from its side length. A cube is a three-dimensional shape with six equal square faces. Volume = side³. Cuboid Surface Area Calculator Calculate the surface area of a cuboid (rectangular prism) from its length, width, and height. Cuboid Volume Calculator Calculate the volume of a cuboid (rectangular prism) from its length, width, and height. Cylinder Calculator Cylinder Calculator is a mathematics calculator that helps you calculate cylinder values from your input data. The formula used is: V = πr²h; Lateral = 2πrh; Total = 2πr(r+h); d = 2r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cylinder Radius from Volume Find cylinder radius from volume. Formula: r = √(V/(πh)). Solves for radius given volume and height. Cylindrical Coordinates Calculator The Cylindrical Coordinates Calculator converts Cartesian coordinates (x, y, z) into cylindrical coordinates (r, θ, z). Enter the x, y, and z values. Cylindrical Tank Volume Calculator Cylindrical Tank Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: r = d/2; Total = πr²h; Fill = Total×(fill%/100); Litres = m³×1000. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Decimal Degrees to DMS Calculator The Decimal Degrees to DMS Calculator converts a decimal angle into degrees, minutes, and seconds. Enter the decimal degrees. Diameter of a Cone Calculator The Diameter of a Cone Calculator finds the base diameter of a cone from its volume and height. Enter the volume and height. Dimensions of a Rectangle Calculator The Dimensions of a Rectangle Calculator finds the length and width of a rectangle from its area and perimeter by solving the resulting quadratic. Enter the area and perimeter. Directed Line Segment Ratio Calculator Find division point on directed line segment. If P divides AB in ratio m:n, then P = (n×A + m×B) / (m+n). Distance Between Two Points Distance Between Two Points is a mathematics calculator that helps you calculate distances between two or more points. The formula used is: d = √((x₂−x₁)²+(y₂−y₁)²); Midpoint = ((x₁+x₂)/2, (y₁+y₂)/2); Slope = (y₂−y₁)/(x₂−x₁). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Donut (Annulus) Area Calculator The Donut Area Calculator finds the area of an annulus (a ring or donut shape) from its outer and inner radii, plus both circumferences. Enter the radii. Ellipse Calculator Ellipse Calculator is a mathematics calculator that helps you calculate ellipse values from your input data. The formula used is: Area = π×a×b; Perimeter ≈ π(a+b)[1 + 3h/(10+√(4−3h))] where h=(a−b)²/(a+b)²; e = √(1−(b/a)²); c = √(a²−b²). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Ellipse Standard Form Calculator The Ellipse Standard Form Calculator builds the standard equation of an ellipse and finds its foci distance, eccentricity, and area. Enter the center and the two semi-axes. Ellipsoid Calculator Ellipsoid Calculator is a mathematics calculator that helps you calculate ellipsoid values from your input data. The formula used is: V = (4/3)πabc; SA ≈ 4π×((a^1.6×b^1.6+a^1.6×c^1.6+b^1.6×c^1.6)/3)^(1/1.6) [Knud Thomsen]. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Equilateral Triangle Calculator Equilateral Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = (√3/4)×s²; Perimeter = 3s; Height = (√3/2)×s; Inradius = s/(2√3); Circumradius = s/√3. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Euler's Formula for Polyhedra Calculator Euler's Formula Calculator uses V − E + F = 2 to find the missing count of vertices, edges, or faces of a convex polyhedron. Enter the vertices and edges to find the faces. Fibonacci Sequence Calculator Fibonacci Sequence Calculator is a mathematics calculator that helps you calculate fibonacci sequence values from your input data. The formula used is: F(n) = F(n−1) + F(n−2); F(1) = startA, F(2) = startB; ratio F(n)/F(n−1) → φ = (1+√5)/2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Frustum (Truncated Cone) Calculator Frustum (Truncated Cone) Calculator is a mathematics calculator that helps you calculate frustum (truncated cone) values from your input data. The formula used is: l = √(h²+(R−r)²); V = (πh/3)(r²+R²+rR); Lateral = π(r+R)l; Total = Lateral+πr²+πR². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Frustum Lateral Area Calculator Calculate lateral surface area of a frustum (truncated cone). Enter top radius, bottom radius, and height to compute the curved (lateral) surface area, plus both circular base areas. General Prism Volume Calculator General Prism Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = Base Area × Length; Lateral = Perimeter × Length; Total = 2×Base Area + Lateral. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. General Quadrilateral Area Calculator General Quadrilateral Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = ½ × d1 × d2 × sin(θ). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Golden Ratio Calculator Golden Ratio Calculator is a mathematics calculator that helps you calculate the ratio between two numbers in simplified form. The formula used is: φ = (1+√5)/2 ≈ 1.6180339887; longer = shorter × φ; shorter = longer / φ; total = shorter × (1+φ). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Hemisphere Calculator Hemisphere Calculator is a mathematics calculator that helps you calculate pH or pOH from ion concentrations. The formula used is: V = (2/3)πr³; Curved SA = 2πr²; Total SA = 3πr²; d = 2r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Hollow Cylinder (Tube) Calculator Hollow Cylinder (Tube) Calculator is a mathematics calculator that helps you calculate hollow cylinder (tube) values from your input data. The formula used is: V = πh(R²−r²); Outer = 2πRh; Inner = 2πrh; Top+Bottom = 2π(R²−r²); Total = all four. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Interior & Exterior Angles Calculator Interior & Exterior Angles Calculator is a mathematics calculator that helps you calculate interior & exterior angles values from your input data. The formula used is: Interior angle = (n−2)×180/n; Exterior angle = 360/n; Sum of interior = (n−2)×180; Diagonals = n(n−3)/2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Isosceles Trapezoid Calculator The Isosceles Trapezoid Calculator finds the height, area, and perimeter of an isosceles trapezoid from its two parallel sides and its equal legs. Enter the sides. Isosceles Triangle Calculator Isosceles Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Height = √(leg²−(base/2)²); Area = ½×base×height; Perimeter = base+2×leg; Base angle = arccos(base/(2×leg)). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Kite Calculator Kite Calculator is a mathematics calculator that helps you calculate kite values from your input data. The formula used is: Area = p×q/2; Perimeter = 2×(a+b). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Latus Rectum Calculator (Parabola) The Latus Rectum Calculator finds the length of the latus rectum of a parabola y² = 4ax, the focal chord perpendicular to the axis. Enter the value of a. Line of Intersection of Two Planes Calculator The Line of Intersection of Two Planes Calculator finds the direction vector of the line where two planes meet, using the cross product of their normal vectors. Enter each plane's normal (a, b, c). Mobius Strip Calculator The Mobius Strip Calculator finds the surface area and single continuous edge length of a Möbius strip made from a rectangular strip of paper. Enter the strip length and width. Parallelogram Calculator Parallelogram Calculator is a mathematics calculator that helps you calculate parallelogram values from your input data. The formula used is: Area = base×height; Perimeter = 2(base+side); d1 = √(b²+s²−2bs·cos θ); d2 = √(b²+s²+2bs·cos θ); cos θ = √(1−(h/s)²). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Perimeter Calculator Perimeter Calculator is a mathematics calculator that helps you calculate perimeter values from your input data. The formula used is: Square: 4s; Rectangle: 2(l+w); Equilateral triangle: 3s; Circle: π×diameter; Hexagon: 6s. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Perpendicular Line Calculator Perpendicular Line Calculator finds the equation of a line perpendicular to a given line and passing through a point. Perpendicular slope = -1/m (negative reciprocal). Platonic Solids Calculator Platonic Solids Calculator is a mathematics calculator that helps you calculate platonic solids values from your input data. The formula used is: Tetrahedron: V=a³/(6√2); Cube: V=a³; Octahedron: V=(√2/3)a³; Dodecahedron: V=((15+7√5)/4)a³; Icosahedron: V=(5(3+√5)/12)a³. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Polygon Area Calculator (by Coordinates) Polygon Area Calculator (by Coordinates) is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = |x1(y2−y3)+x2(y3−y1)+x3(y1−y2)|/2 (Shoelace formula); Perimeter = sum of side lengths. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Pyramid Face Angle Calculate pyramid face (slant) angle. Formula: angle = arctan(height / (base/2)). Used in architecture and geometry. Pyramid Volume Calculator Calculate the volume of a pyramid using base area and height. Works for square, rectangular, and triangular pyramids. Volume = (1/3) × base area × height. Quadrilateral Area Calculator Calculate the area of a quadrilateral using diagonals and angle between them. Area = (d1 × d2 × sin(θ)) / 2. Quadrilateral Area Calculator (from Coordinates) Find the area of any quadrilateral from the coordinates of its four corners using the shoelace formula. Enter the (x, y) points for vertices A, B, C and D in order around the shape, and the calculator returns the enclosed area. It works for squares, rectangles, parallelograms, trapezoids and irregular quadrilaterals alike. Quadrilateral Perimeter Calculator Quadrilateral Perimeter Calculator — sum the four sides of a quadrilateral to find its perimeter. Quarter Circle Area Calculator Calculate the area of a quarter circle (1/4 of a circle) using radius. Area = (π × r²) / 4. Quarter Circle Calculator Calculate quarter circle properties: area and perimeter using radius. Quarter Circle Perimeter Calculator Calculate the perimeter of a quarter circle. Perimeter = (π × r / 2) + 2r (arc length plus two radii). Rectangle Area Calculator Rectangle Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = l×w; Perimeter = 2(l+w); Diagonal = √(l²+w²); Aspect ratio = max/min. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Rectangle Diagonal Calculator Rectangle Diagonal Calculator is a mathematics calculator that helps you calculate rectangle diagonal values from your input data. The formula used is: Diagonal = √(l²+w²); Area = l×w; Perimeter = 2(l+w); Aspect ratio = l/w; Diagonal angle = arctan(w/l). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Rectangle Perimeter Calculator Rectangle Perimeter Calculator — calculate the perimeter of a rectangle given length and width. Rectangle Perimeter from Area Calculator Rectangle Perimeter from Area Calculator — find the perimeter when given area and one side (width or length). Rectangle Scale Factor Calculator The Rectangle Scale Factor Calculator resizes a rectangle by a scale factor and shows the new dimensions, plus how the perimeter and area change. Enter the original size and scale factor. Rectangular Prism (Cuboid) Calculator Rectangular Prism (Cuboid) Calculator is a mathematics calculator that helps you calculate rectangular prism (cuboid) values from your input data. The formula used is: V = l×w×h; SA = 2(lw+lh+wh); Diagonal = √(l²+w²+h²); Lateral = 2h(l+w). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Regular Hexagon Calculator Regular Hexagon Calculator is a mathematics calculator that helps you calculate regular hexagon values from your input data. The formula used is: Area = (3√3/2) × s²; Perimeter = 6s; Long diagonal = 2s; Short diagonal = s√3; Inradius = s√3/2; Circumradius = s. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Regular Octagon Calculator Regular Octagon Calculator is a mathematics calculator that helps you calculate regular octagon values from your input data. The formula used is: Area = 2(1+√2)×s²; Perimeter = 8s; Short diagonal = s√(4+2√2); Long diagonal = s(1+√2)√2; Inradius = s(1+√2)/2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Regular Pentagon Calculator Regular Pentagon Calculator is a mathematics calculator that helps you calculate regular pentagon values from your input data. The formula used is: Area = (√(25+10√5)/4) × s²; Perimeter = 5s; Diagonal = s×(1+√5)/2 (golden ratio); Inradius = s/(2tan(π/5)); Circumradius = s/(2sin(π/5)). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Regular Polygon Calculator Regular Polygon Calculator is a mathematics calculator that helps you calculate regular polygon values from your input data. The formula used is: Area = (n×s²)/(4×tan(π/n)); Inradius = s/(2×tan(π/n)); Circumradius = s/(2×sin(π/n)); Interior angle = (n−2)×180/n. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Regular Tetrahedron Calculator Regular Tetrahedron Calculator is a mathematics calculator that helps you calculate regular tetrahedron values from your input data. The formula used is: V = a³/(6√2); SA = √3×a²; h = a√(2/3); r_in = a/(2√6); r_circ = a√(3/8). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Rhombus Area Calculator Calculate the area of a rhombus using diagonals or base and height. Rhombus Calculator Rhombus Calculator is a mathematics calculator that helps you calculate rhombus values from your input data. The formula used is: Area = d1×d2/2; Perimeter = 4×s; Height = Area/s; Side = √((d1/2)²+(d2/2)²). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Right Circular Cone Calculator Calculate volume, surface area, and slant height of a right circular cone. Right Square Pyramid Calculator Calculate volume, surface area, and slant height of a right square pyramid. Right Trapezoid Area Calculator Calculate the area of a right trapezoid with two parallel sides and height. Right Triangle Calculator Right Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: c = √(a²+b²); Area = a×b/2; Perimeter = a+b+c; Angle A = arctan(a/b); Angle B = arctan(b/a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Right Triangle Perimeter Calculator Right Triangle Perimeter Calculator — find perimeter using two legs (Pythagorean theorem) or all three sides. SAS Triangle Area Calculator Find the area of a triangle from two sides and the angle between them (the side-angle-side, or SAS, case) using Area = ½ × a × b × sin(C). Enter the two side lengths and the included angle in degrees, and the calculator returns the area in square units. Scalene Triangle Calculator Scalene Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: s = (a+b+c)/2; Area = √(s(s−a)(s−b)(s−c)); Angle A = arccos((b²+c²−a²)/(2bc)); Inradius = area/s; Circumradius = abc/(4×area). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Sector Perimeter Calculator Sector Perimeter Calculator — find the perimeter of a circular sector (radius + arc + radius). Sphere Calculator Sphere Calculator is a mathematics calculator that helps you calculate pH or pOH from ion concentrations. The formula used is: V = (4/3)πr³; A = 4πr²; d = 2r; Great Circle = πr². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Sphere Properties Calculator Calculate sphere properties from radius: volume and surface area. Volume = (4/3) × π × r³; Surface Area = 4π × r². Sphere Properties Calculator Sphere Properties Calculator is a mathematics calculator that helps you calculate pH or pOH from ion concentrations. The formula used is: From SA: r=√(A/4π); From V: r=∛(3V/4π); From d: r=d/2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Spherical Cap Calculator Spherical Cap Calculator is a mathematics calculator that helps you calculate pH or pOH from ion concentrations. The formula used is: V = (πh²/3)(3R−h); Base r = √(2Rh−h²); Curved SA = 2πRh; Base area = πr². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Square Calculator Square Calculator is a mathematics calculator that helps you calculate square values from your input data. The formula used is: Area = s²; Perimeter = 4s; Diagonal = s√2; Inradius = s/2; Circumradius = s√2/2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Square Pyramid Calculator Square Pyramid Calculator is a mathematics calculator that helps you calculate square pyramid values from your input data. The formula used is: l = √(h²+(b/2)²); V = (1/3)b²h; Lateral = 2bl; Total = b²+2bl. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Surface Area Calculator Surface Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Sphere: 4πr²; Cube: 6a²; Cylinder: 2πr(r+h); Cone: πr(r+√(r²+h²)). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Surface Area of a Sphere Calculator Calculate the surface area of a sphere from its radius using A = 4πr². A sphere is the set of all points at distance r from a centre, and its outer skin has area exactly four times that of a flat circle of the same radius. Enter the radius and read the surface area in square units. Tank/Hopper Volume Calculator Tank/Hopper Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = (πh/3)(r1²+r1r2+r2²); Slant = √(h²+(r1−r2)²); Litres = m³×1000. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Torus Calculator Torus Calculator is a mathematics calculator that helps you calculate torus values from your input data. The formula used is: V = 2π²Rr²; SA = 4π²Rr. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Trapezoid Calculator Trapezoid Calculator is a mathematics calculator that helps you calculate trapezoid values from your input data. The formula used is: Area = (a+b)/2 × h; Perimeter = a+b+leg1+leg2; Median = (a+b)/2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Triangle Altitude (Height) Calculator Triangle Altitude (Height) Calculator is a mathematics calculator that helps you calculate height measurements or conversions between unit systems. The formula used is: Altitude to base = 2×Area/base; Heron's: Area = √(s(s−a)(s−b)(s−c)); ha = 2×Area/a. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Triangle Area Calculator (3 Sides) This triangle area calculator finds the area of any triangle when you know the lengths of its three sides (the SSS case). Enter sides a, b, and c and it applies Heron's formula: it first computes the semi-perimeter s = (a + b + c) / 2, then the area A = √[s(s − a)(s − b)(s − c)]. It also returns the perimeter and semi-perimeter, and warns you if the three lengths cannot form a real triangle. Triangle Area from Coordinates Calculator Find the area of a triangle from the coordinates of its three vertices using the shoelace formula. Enter the (x, y) points for A, B and C, and the calculator returns the area as ½ × |x₁(y₂−y₃) + x₂(y₃−y₁) + x₃(y₁−y₂)|. It works for any triangle in the plane, however it is oriented. Triangle Area from Two Sides Triangle Area from Two Sides is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = ½×s1×s2×sin(θ); Third side c = √(s1²+s2²−2×s1×s2×cos(θ)) (Law of Cosines). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Triangle Perimeter Calculator Triangle Perimeter Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Perimeter = a+b+c; s = (a+b+c)/2; Area = √(s(s−a)(s−b)(s−c)). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Triangle Perimeter from Vertices Calculator Triangle Perimeter from Vertices Calculator — find perimeter given three vertices using the distance formula. Triangle Perimeter with Fractions Calculator Triangle Perimeter with Fractions Calculator — sum fractional side lengths to find triangle perimeter. Triangular Prism Calculator Triangular Prism Calculator is a mathematics calculator that helps you calculate triangular prism values from your input data. The formula used is: Triangle Area = ½×b×h; V = Triangle Area × Length; Total SA = 2×Triangle Area + Perimeter×Length. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Triangular Pyramid (Tetrahedron) Calculator Triangular Pyramid (Tetrahedron) Calculator is a mathematics calculator that helps you calculate triangular pyramid (tetrahedron) values from your input data. The formula used is: Base Area = (√3/4)b²; V = (1/3)×Base Area×h; Slant = √(h²+(b/√3)²); Lateral = 3×(½×b×slant). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Volume of Revolution (Disk Method) Volume of Revolution (Disk Method) is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: Disk: V = πR²h; Washer: V = π(R²−r²)h. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Volume Unit Converter Volume Unit Converter is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: Convert to litres first, then to target: result = value × fromFactor / toFactor. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

5 Number Summary Calculator The five-number summary describes a dataset with five points: the minimum, first quartile (Q1), median, third quartile (Q3) and maximum. Paste a list of numbers and this calculator sorts them, finds each value and also reports the interquartile range (IQR = Q3 − Q1). These five numbers are exactly what a box-and-whisker plot is built from, giving a quick picture of a distribution's centre and spread. Absolute & Relative Error Calculator This absolute and relative error calculator compares a measured value with the true (actual) value to quantify how far off a measurement is. Enter your measured value M and the actual value A, and it returns the absolute error |M − A|, the relative error as a percentage, the resulting accuracy, and whether you over- or under-estimated. Absolute Change Calculator This absolute change calculator tells you how much a value has changed in raw units between a starting (initial) value and an ending (final) value. The absolute change is simply |final − initial|, so it is always reported as a positive amount. The calculator also shows the direction of the change (increase, decrease, or no change) and the matching percent change relative to the initial value. Addition Rule of Probability Calculator Addition Rule of Probability Calculator is a mathematics calculator that helps you calculate probability from favourable and total possible outcomes. The formula used is: P(A∪B) = P(A) + P(B) − P(A∩B) · If mutually exclusive: P(A∩B) = 0. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Average Percentage Calculator The Average Percentage Calculator finds the mean of a list of percentages. Enter your percentages separated by commas — for example test scores, completion rates, or growth figures — and you get their straight average, the total, and the count. Note: averaging percentages only gives a true overall rate when each percentage is based on the same group size. Bayes' Theorem Calculator Apply Bayes' theorem to update a probability in light of new evidence. Enter the prior probability of an event, the chance of the evidence when the event is true, and the chance of the evidence when it's false. The calculator returns the posterior probability — a classic example is the real chance of having a disease after a positive test. Binomial Distribution Calculator Find the probability of getting exactly k successes — and up to k, and more than k — in n independent trials, each with success probability p. This calculator also reports the mean, variance, and standard deviation of the binomial distribution. Birthday Paradox Calculator Find the surprising probability that two people in a group share a birthday. Enter the number of people and this calculator returns the chance of at least one shared birthday, the chance of none, the group size needed to cross 50%, and the number of possible pairs. Chi-Square Test Calculator Chi-Square Test Calculator is a mathematics calculator that helps you calculate chi-square test values from your input data. The formula used is: χ² = Σ (O − E)² / E · df = k − 1. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Class Width Calculator (Frequency Distribution) Class Width Calculator (Frequency Distribution) is a mathematics calculator that helps you calculate class width calculator (frequency distribution) values from your input data. The formula used is: Class Width = ⌈Range / Number of Classes⌉ · Range = Max − Min. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Coefficient of Variation Calculator Coefficient of Variation Calculator is a mathematics calculator that helps you calculate coefficient of variation values from your input data. The formula used is: CV = (σ / μ) × 100%. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Coin Flip Probability Calculator Coin Flip Probability Calculator is a mathematics calculator that helps you calculate probability from favourable and total possible outcomes. The formula used is: P(X=k) = C(n,k) × (0.5)^n. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Combination Calculator (nCr) Combination Calculator (nCr) is a mathematics calculator that helps you calculate combination calculator (ncr) values from your input data. The formula used is: nCr = n! / (r! × (n−r)!) · nPr = n! / (n−r)!. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Conditional Probability Calculator Conditional Probability Calculator is a mathematics calculator that helps you calculate probability from favourable and total possible outcomes. The formula used is: P(A|B) = P(A∩B) / P(B) · P(B|A) = P(A∩B) / P(A). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Confidence Interval Calculator Confidence Interval Calculator is a mathematics calculator that helps you calculate confidence interval values from your input data. The formula used is: CI = x̄ ± z × (σ/√n) · z: 90%=1.645, 95%=1.96, 99%=2.576. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Correlation Coefficient Calculator Correlation Coefficient Calculator is a mathematics calculator that helps you calculate correlation coefficient values from your input data. The formula used is: r = (Σxy − n·x̄·ȳ) / √[(Σx² − n·x̄²)(Σy² − n·ȳ²)]. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Correlation Significance Test Correlation Significance Test is a mathematics calculator that helps you calculate correlation significance test values from your input data. The formula used is: t = r × √(n−2) / √(1−r²) · df = n−2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Covariance Calculator Covariance Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: Cov(X,Y) = Σ(xᵢ−x̄)(yᵢ−ȳ) / (n−1) [sample] or / n [population]. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Descriptive Statistics Calculator Descriptive Statistics Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: Comprehensive summary: Mean, Median, Mode, Std Dev, Variance, Q1, Q3, IQR, Skewness. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Dice Probability Calculator Dice Probability Calculator is a mathematics calculator that helps you calculate probability from favourable and total possible outcomes. The formula used is: P(sum = s) = Ways to roll s ÷ sides^dice. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Effect Size Calculator (Cohen's d) Effect Size Calculator (Cohen's d) is a mathematics calculator that helps you calculate effect size calculator (cohen's d) values from your input data. The formula used is: d = (μ₁−μ₂) / s_pooled · s_pooled = √[((n₁−1)s₁²+(n₂−1)s₂²)/(n₁+n₂−2)]. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Expected Value Calculator Expected Value Calculator is a mathematics calculator that helps you calculate expected value values from your input data. The formula used is: E(X) = Σ(xᵢ × pᵢ) · Var = Σ(pᵢ × (xᵢ − E(X))²). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Exponential Smoothing Calculator Exponential Smoothing Calculator is a mathematics calculator that helps you calculate exponential smoothing values from your input data. The formula used is: S₁ = x₁ · Sₜ = α·xₜ + (1−α)·Sₜ₋₁ · Forecast = last Sₜ. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Geometric Distribution Calculator Geometric Distribution Calculator is a mathematics calculator that helps you calculate geometric distribution values from your input data. The formula used is: P(X=k) = (1−p)^(k−1) × p · μ = 1/p · σ² = (1−p)/p². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Geometric Mean Calculator Geometric Mean Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: GM = (x₁ × x₂ × … × xₙ)^(1/n) = exp(Σln(xᵢ) / n). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Harmonic Mean Calculator Harmonic Mean Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: HM = n / Σ(1/xᵢ). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Hypergeometric Distribution Calculator Hypergeometric Distribution Calculator is a mathematics calculator that helps you calculate hypergeometric distribution values from your input data. The formula used is: P(X=k) = C(K,k)×C(N−K,n−k) / C(N,n) · μ = n·K/N. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. IQR Calculator (Interquartile Range) IQR Calculator (Interquartile Range) is a mathematics calculator that helps you calculate material quantities needed for a construction or renovation task. The formula used is: IQR = Q3 − Q1 · Lower fence = Q1 − 1.5×IQR · Upper fence = Q3 + 1.5×IQR. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Linear Regression Calculator Linear Regression Calculator is a mathematics calculator that helps you calculate linear regression values from your input data. The formula used is: b = (nΣxy − ΣxΣy) / (nΣx² − (Σx)²) · a = ȳ − b·x̄ · R² = 1 − SS_res/SS_tot. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Lottery Odds Calculator Lottery Odds Calculator is a mathematics calculator that helps you calculate probability from favourable and total possible outcomes. The formula used is: Combinations = C(n, k) = n! / (k! × (n−k)!)\nWith bonus ball: × bonus pool size\nExpected Value = Jackpot / Combinations − Ticket Cost. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Lottery Probability Calculator Lottery Probability Calculator is a mathematics calculator that helps you calculate probability from favourable and total possible outcomes. The formula used is: Odds = C(n, k) · With bonus: Odds × bonus pool size. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Margin of Error Calculator Margin of Error Calculator is a mathematics calculator that helps you calculate profit, loss, or margin from revenue and cost figures. The formula used is: MOE = z × √(p(1−p)/n) × 100%. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Mean (Average) Calculator Mean (Average) Calculator is a mathematics calculator that helps you calculate the mean (arithmetic average) of a set of numbers. The formula used is: Mean = (Sum of all values) / (Count of values). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Mean Absolute Deviation (MAD) Calculator Mean Absolute Deviation (MAD) Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: MAD = Σ|xᵢ − μ| / n. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Mean, Median & Mode Calculator Mean, Median & Mode Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: Mean = Σx/n · Median = middle value · Mode = most frequent value · Range = max − min. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Median Calculator Median Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: Odd n: median = middle value. Even n: median = average of two middle values.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Midrange Calculator Midrange Calculator is a mathematics calculator that helps you calculate midrange values from your input data. The formula used is: Midrange = (Max + Min) / 2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Mode Calculator Mode Calculator is a mathematics calculator that helps you calculate mode values from your input data. The formula used is: Mode = value(s) appearing most frequently in the dataset. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Moving Average Calculator Moving Average Calculator is a mathematics calculator that helps you calculate the simple moving average of a data series over a chosen period. The formula used is: SMA(t) = (x(t) + x(t−1) + … + x(t−p+1)) / p. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Multi-Dice Outcome Probability Multi-Dice Outcome Probability is a mathematics calculator that helps you calculate probability from favourable and total possible outcomes. The formula used is: P = Favorable Outcomes / Total Outcomes (sides^dice). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Negative Binomial Distribution Calculator Negative Binomial Distribution Calculator is a mathematics calculator that helps you calculate negative binomial distribution values from your input data. The formula used is: P(X=k) = C(k−1, r−1) × p^r × (1−p)^(k−r) · μ = r/p · σ² = r(1−p)/p². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Normal Distribution Calculator Normal Distribution Calculator is a mathematics calculator that helps you calculate normal distribution values from your input data. The formula used is: z = (x−μ)/σ · PDF = exp(−z²/2) / (σ√(2π)) · CDF = Φ(z). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Odds Ratio Calculator Odds Ratio Calculator is a mathematics calculator that helps you calculate the ratio between two numbers in simplified form. The formula used is: OR = (a × d) / (b × c) · 2×2 table: [a b / c d]. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. One-Sample T-Test Calculator One-Sample T-Test Calculator is a mathematics calculator that helps you calculate one-sample t-test values from your input data. The formula used is: t = (x̄ − μ₀) / (s / √n) · df = n − 1. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Outlier Calculator Outlier Calculator is a mathematics calculator that helps you calculate outlier values from your input data. The formula used is: Fences: Q1 − 1.5×IQR to Q3 + 1.5×IQR. Values outside are outliers.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. p-Value Calculator p-Value Calculator is a mathematics calculator that helps you calculate p-value values from your input data. The formula used is: Z-test: p = 2(1−Φ(|z|)) · T-test: p = I_x(df/2, 0.5) where x = df/(df+t²). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Percent Error Calculator Percent Error Calculator is a mathematics calculator that helps you calculate a percentage from a part and a whole, or a percentage change. The formula used is: % Error = |Experimental − Theoretical| / |Theoretical| × 100%. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Percentile Calculator Percentile Calculator is a mathematics calculator that helps you calculate a percentage from a part and a whole, or a percentage change. The formula used is: index = (p/100) × (n−1); value = x_lower + fraction × (x_upper − x_lower). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Percentile Rank Calculator Percentile Rank Calculator determines where a score ranks within a dataset using the formula: PR = ((count below + 0.5 × count equal) / n) × 100. Enter comma-separated data and a target score to find its percentile rank from 0 to 100. Permutation Calculator (nPr) Permutation Calculator (nPr) is a mathematics calculator that helps you calculate permutation calculator (npr) values from your input data. The formula used is: nPr = n! / (n−r)! · nCr = n! / (r! × (n−r)!). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Poisson Distribution Calculator Poisson Distribution Calculator is a mathematics calculator that helps you calculate poisson distribution values from your input data. The formula used is: P(X=k) = (λ^k × e^(−λ)) / k! · μ = σ² = λ. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Pooled Standard Deviation Calculator Pooled Standard Deviation Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: s_p = √[((n₁−1)s₁² + (n₂−1)s₂²) / (n₁+n₂−2)] · Combined Mean = (n₁μ₁+n₂μ₂)/(n₁+n₂). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Probability Calculator Probability Calculator is a mathematics calculator that helps you calculate probability from favourable and total possible outcomes. The formula used is: P(A) = Favorable Outcomes ÷ Total Outcomes. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Quartile Calculator Quartile Calculator is a mathematics calculator that helps you calculate material quantities needed for a construction or renovation task. The formula used is: Q1 = median of lower half · Q2 = overall median · Q3 = median of upper half · IQR = Q3 − Q1. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. R-Squared (R²) Calculator R-Squared (R²) Calculator is a mathematics calculator that helps you calculate r-squared (r²) values from your input data. The formula used is: R² = 1 − SS_res/SS_tot · RMSE = √(Σ(yᵢ−ŷᵢ)²/n) · MAE = Σ|yᵢ−ŷᵢ|/n. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Raffle Draw Probability Calculator Raffle Draw Probability Calculator is a mathematics calculator that helps you calculate probability from favourable and total possible outcomes. The formula used is: Win Probability = (Tickets Held / Total) × 100\nExpected per Win = Total / Tickets Held\nFor 50%: need Total/2 tickets. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Random Number Generator Random Number Generator is a mathematics calculator that helps you calculate random number generator values from your input data. The formula used is: LCG: seedₙ₊₁ = (1664525 × seedₙ + 1013904223) mod 2³². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Range Calculator Range Calculator is a mathematics calculator that helps you calculate range values from your input data. The formula used is: Range = Max − Min · Midrange = (Max + Min) / 2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Relative Frequency Calculator Relative Frequency Calculator is a mathematics calculator that helps you calculate relative frequency values from your input data. The formula used is: Relative Frequency = (count / total) × 100%. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Relative Risk Calculator Relative Risk Calculator is a mathematics calculator that helps you calculate relative risk values from your input data. The formula used is: RR = (a/n₁) / (c/n₂) · ARR = |Risk₁ − Risk₂| · NNT = 1/ARR. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Root Mean Square (RMS) Calculator Root Mean Square (RMS) Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: RMS = √(Σxᵢ² / n). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Sample Size Calculator Sample Size Calculator is a mathematics calculator that helps you calculate sample size values from your input data. The formula used is: n = (z / E)² × p × (1−p) where E = margin/100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Sensitivity & Specificity Calculator Sensitivity & Specificity Calculator is a mathematics calculator that helps you calculate sensitivity & specificity values from your input data. The formula used is: Sensitivity = TP/(TP+FN) · Specificity = TN/(TN+FP) · PPV = TP/(TP+FP) · NPV = TN/(TN+FN). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Skewness Calculator Skewness Calculator is a mathematics calculator that helps you calculate skewness values from your input data. The formula used is: Pearson Skewness = 3 × (Mean − Median) / σ. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Standard Error Calculator Standard Error Calculator is a mathematics calculator that helps you calculate standard error values from your input data. The formula used is: SE = s / √n. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Standard Normal (Z-table) Calculator Standard Normal (Z-table) Calculator is a mathematics calculator that helps you calculate standard normal (z-table) values from your input data. The formula used is: Φ(z) = P(Z ≤ z) · P(Z > z) = 1 − Φ(z). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Sum of Squares Calculator Sum of Squares Calculator is a mathematics calculator that helps you calculate sum of squares values from your input data. The formula used is: SS_total = Σ(xᵢ−x̄)² · SS_explained = Σnᵢ(ȳᵢ−x̄)² · SS_error = SS_total − SS_explained. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Two-Sample T-Test Calculator Two-Sample T-Test Calculator is a mathematics calculator that helps you calculate two-sample t-test values from your input data. The formula used is: t = (x̄₁−x̄₂) / (Sp × √(1/n₁+1/n₂)) · Sp = √(((n₁−1)s₁²+(n₂−1)s₂²)/(n₁+n₂−2)). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Variance Calculator Variance Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: σ² (population) = Σ(xᵢ−μ)²/n · s² (sample) = Σ(xᵢ−x̄)²/(n−1). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Weighted Average Calculator Weighted Average Calculator is a mathematics calculator that helps you calculate the weighted average of values using their weights. The formula used is: Weighted Average = Σ(vᵢ × wᵢ) / Σwᵢ. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Z-Score Calculator Z-Score Calculator is a mathematics calculator that helps you calculate academic scores or grade equivalents. The formula used is: z = (x − μ) / σ. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

a + bi Form Calculator This a + bi form calculator works with a complex number written in rectangular form, a + bi, where a is the real part and b is the imaginary part. Enter a and b and it returns the number's magnitude (modulus) √(a² + b²) and its phase (argument) in degrees, found with atan2(b, a). Together these give the polar form of the complex number. Complex Conjugate Calculator The Complex Conjugate Calculator returns the conjugate of a complex number a + bi (which is a − bi), along with its modulus and the product z·z̄. Enter the real and imaginary parts. Complex Number Polar Form Complex Polar Form converts rectangular (a+bi) to polar (r∠θ). Formula: r = √(a²+b²); θ = atan2(b,a). Powers of i Calculator Powers of i cycle through i, -1, -i, 1. i^1=i, i^2=-1, i^3=-i, i^4=1, i^5=i... Quaternion Magnitude Calculate quaternion magnitude. Formula: |q| = √(w²+x²+y²+z²). Used in 3D rotations and graphics. Educational reference.

Adding and Subtracting Fractions Calculator The Adding and Subtracting Fractions Calculator combines two fractions using either addition or subtraction and returns the answer in lowest terms plus its decimal value. Choose the operation, enter each numerator and denominator, and it finds a common denominator and simplifies the result. Adding Fractions Calculator The Adding Fractions Calculator adds two fractions and returns the sum as a fraction reduced to its lowest terms, along with the decimal value. Enter the numerator and denominator of each fraction and it finds a common denominator, adds the parts, and simplifies the answer for you. Comparing Fractions Calculator The Comparing Fractions Calculator tells you which of two fractions is larger using cross-multiplication, and shows their decimal values. Enter both numerators and denominators. Egyptian Fraction Calculator The Egyptian Fraction Calculator expresses a proper fraction as a sum of distinct unit fractions using the greedy (Fibonacci–Sylvester) algorithm. Enter a numerator and denominator. Equivalent Fractions Calculator The Equivalent Fractions Calculator lists fractions equal to the one you enter and shows its simplest form. Enter a numerator and denominator. Improper Fraction to Mixed Number Calculator The Mixed Number Calculator converts an improper fraction into a whole number plus a proper fraction, simplified. Enter the numerator and denominator. Lowest Common Denominator Calculator Calculate the Lowest Common Denominator (LCD) of two fractions. LCD = (denom1 × denom2) / GCD(denom1, denom2). Mixed Number to Improper Fraction Calculator The Mixed Number to Improper Fraction Calculator converts a whole number and fraction into a single improper fraction, simplified. Enter the whole number, numerator, and denominator. Reduce Fraction to Lowest Terms Simplify a fraction to its lowest terms (reduce to simplest form). Divide numerator and denominator by their GCD.

Addition Calculator The Addition Calculator adds two numbers together and shows the sum instantly. Enter any two values — whole numbers, decimals, or negatives — and it returns a + b along with the full equation. Associative Property Calculator See the associative property of addition in action: grouping numbers differently does not change the sum, so (a + b) + c always equals a + (b + c). Enter three numbers and the calculator evaluates both groupings and confirms they match. Box Method Multiplication Calculator Multiply two numbers using the box method (area model) showing the partial products visually. Engineering Notation Calculator The Engineering Notation Calculator writes a number with an exponent that is a multiple of three, matching SI prefixes like kilo, mega and milli. Enter a number. Equivalent Ratio Calculator The Equivalent Ratio Calculator finds the missing term in a proportion A:B = C:D. Enter three of the four values and it solves for the fourth, keeping the ratios equal. Expanded Form Calculator The Expanded Form Calculator breaks a whole number into the sum of its place values (for example 3254 = 3000 + 200 + 50 + 4). Enter a whole number. Exponential (Scientific) Notation Calculator The Exponential Notation Calculator writes any number in scientific notation as a coefficient times a power of ten. Enter a number. Long Multiplication Calculator The Long Multiplication Calculator multiplies two whole numbers and shows the partial products from each digit of the second number. Enter both numbers. Modulo (Remainder) Calculator Calculate remainder: a mod b (integer division remainder). Modulo Calculator The Modulo Calculator returns the remainder after dividing one number by another, along with the integer quotient. Enter the dividend and divisor. Perfect Cube Calculator Perfect Cube Calculator — determine if a number is a perfect cube and find its cube root. Ratio of 2 Numbers Calculator The Ratio of 2 Numbers Calculator simplifies two numbers into their lowest-terms ratio and also shows the decimal and percentage relationship between them.

Adjoint (Adjugate) Matrix Calculator The Adjoint Matrix Calculator finds the adjugate (classical adjoint) of a 2×2 matrix. For a matrix [[a, b], [c, d]], the adjugate is the transpose of the cofactor matrix, which equals [[d, −b], [−c, a]]. The calculator also reports the determinant, since the inverse equals the adjugate divided by the determinant. Characteristic Polynomial Calculator (2×2) The Characteristic Polynomial Calculator finds the characteristic polynomial λ² − (trace)λ + det of a 2×2 matrix, whose roots are the eigenvalues. Enter the four entries. Cofactor Expansion Calculator (2×2) The Cofactor Expansion Calculator finds the determinant of a 2×2 matrix by expanding along the first row, showing the signed products. Enter the four matrix entries. Cofactor Matrix Calculator (2×2) The Cofactor Matrix Calculator finds the matrix of cofactors of a 2×2 matrix, the first step toward the adjugate and inverse. Enter the four matrix entries. Column Space Calculator (2×2) The Column Space Calculator finds the rank and a basis for the column space of a 2×2 matrix. Enter the four matrix entries. Condition Number Calculator (2×2) The Condition Number Calculator measures how sensitive a 2×2 linear system is to input errors, using the infinity-norm condition number. Enter the four matrix entries. Corner Point Calculator The Corner Point Calculator finds where two lines intersect — a key step in linear programming for locating feasible-region corner points. Enter each line as a₁x + b₁y = c₁. Cramer's Rule Calculator (2×2) The Cramer's Rule Calculator solves a 2×2 system of linear equations using determinants. Enter the coefficients and constants for a₁₁x + a₁₂y = b₁ and a₂₁x + a₂₂y = b₂. Diagonalize Matrix Calculator (2×2) The Diagonalize Matrix Calculator finds the eigenvalues of a 2×2 matrix, the diagonal matrix D, and whether the matrix is diagonalizable. Enter the four entries. Eigenvalue and Eigenvector Calculator (2×2) The Eigenvalue and Eigenvector Calculator finds the eigenvalues and eigenvectors of a 2×2 matrix by solving its characteristic equation. Enter the four matrix entries. Elimination Method Calculator (2×2) The Elimination Method Calculator solves a 2×2 system of linear equations for x and y. Enter the coefficients and constants for both equations. Gauss-Jordan Elimination Helper Reference guide for Gauss-Jordan elimination. Solver requires manual row operations. Gram-Schmidt Calculator (2D) The Gram-Schmidt Calculator turns two 2D vectors into an orthogonal (and orthonormal) basis using the Gram-Schmidt process. Enter the components of both vectors. Linear Combination Calculator (2D) The Linear Combination Calculator computes c₁·v₁ + c₂·v₂ for two 2D vectors and two scalars. Enter the scalars and vector components. Matrix Calculator (2×2) Matrix Calculator (2×2) is a mathematics calculator that helps you calculate matrix calculator (2×2) values from your input data. The formula used is: Add/subtract element-by-element. Multiply: each result entry is the dot product of a row of A with a column of B. det(A) = a₁₁a₂₂ − a₁₂a₂₁. A⁻¹ = (1/det)·[a₂₂, −a₁₂; −a₂₁, a₁₁].. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Matrix Determinant (2×2 & 3×3) Calculate determinant of 2×2 or 3×3 matrix (educational). Det(2×2) = ad-bc. Det(3×3) = a(ei-fh) - b(di-fg) + c(dh-eg). Matrix Euclidean Norm Calculator Calculate Euclidean (Frobenius) norm of a matrix. Norm = √(sum of squares of all elements). Matrix Pseudoinverse (2x2) Calculate Moore-Penrose pseudoinverse for 2x2 matrix. Formula: A+ = (A^T · A)^(-1) · A^T. Used for solving least-squares problems. Null Space Calculator (2×2) The Null Space Calculator finds the nullity and a basis for the null space (kernel) of a 2×2 matrix. Enter the four matrix entries.

Ambiguous Triangle (SSA) Calculator Ambiguous Triangle (SSA) Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: h = b·sin(B); if a<h: 0 triangles; if a=h: 1 right triangle; if h<a<b: 2 triangles; if a≥b: 1 triangle. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Angle Addition & Subtraction Angle Addition & Subtraction is a mathematics calculator that helps you calculate angle addition & subtraction values from your input data. The formula used is: sum = angle1 + angle2; normalized = ((sum % 360) + 360) % 360. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Angle Bisector Calculator Angle Bisector Calculator is a mathematics calculator that helps you calculate angle bisector values from your input data. The formula used is: t_c = √(ab[(a+b)²−c²]) / (a+b); bisector divides opposite side in ratio a:b. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Angle Of Depression Calculator The Angle of Depression Calculator finds how far below the horizontal you look down to an object, from the vertical drop and the horizontal distance. The formula used is: angle of depression = arctan(vertical drop ÷ horizontal distance). Angle Of Right Triangle Calculator The Angle of a Right Triangle Calculator finds the two acute angles and the hypotenuse of a right triangle from the lengths of its two legs. It uses the inverse tangent of the opposite over the adjacent leg, with the second angle being its complement. The formula used is: angle = arctan(opposite ÷ adjacent); other angle = 90° − angle; hypotenuse = √(opposite² + adjacent²). Arccos Calculator (Inverse Cosine) The Arccos Calculator finds the inverse cosine of a value between -1 and 1, returning the angle in both radians and degrees. The formula used is: arccos(x) = the angle whose cosine is x. Arcsin Calculator (Inverse Sine) The Arcsin Calculator finds the inverse sine of a value between -1 and 1, returning the angle in radians and degrees. The formula used is: arcsin(x) = the angle whose sine is x, in the range [-90°, 90°]. Arctan Calculator (Inverse Tangent) The Arctan Calculator finds the inverse tangent of any real number, returning the angle in radians and degrees. The formula used is: arctan(x) = the angle whose tangent is x, in the range (-90°, 90°). Arcus Tangent Calculator (arctan) The Arcus Tangent Calculator (arctan, the Latin name for inverse tangent) finds the angle whose tangent equals a given value, in radians and degrees. The formula used is: arctan(x) = the angle whose tangent is x, in the range (-90°, 90°). Basic Trig Equation Solver Basic Trig Equation Solver is a mathematics calculator that helps you calculate basic trig equation solver values from your input data. The formula used is: sin: x = arcsin(v) + 360°n or 180°−arcsin(v) + 360°n; cos: x = ±arccos(v) + 360°n; tan: x = arctan(v) + 180°n. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cofunction Calculator The Cofunction Calculator applies the cofunction identities, which relate a trig function of an angle to the complementary function of its complement (90° − θ). Enter an angle and function. Compass Bearing Calculator Find the initial compass bearing (forward azimuth) from one point to another given their latitude and longitude. The bearing is the angle clockwise from true north you'd follow along the great-circle path. Enter the start and end coordinates to get the bearing in degrees and the nearest compass direction. Cosine Calculator Cosine Calculator is a mathematics calculator that helps you calculate cosine values from your input data. The formula used is: cos(θ) = adjacent / hypotenuse. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cotangent, Secant & Cosecant Cotangent, Secant & Cosecant is a mathematics calculator that helps you calculate cotangent, secant & cosecant values from your input data. The formula used is: cot(θ) = 1/tan(θ), sec(θ) = 1/cos(θ), csc(θ) = 1/sin(θ). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Degrees to Radians Converter Degrees to Radians Converter is a mathematics calculator that helps you calculate a measurement from one unit to an equivalent in another unit. The formula used is: radians = degrees × π/180; gradians = degrees × 10/9. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Double Angle Identities Calculator The Double Angle Identities Calculator computes sin 2θ, cos 2θ, and tan 2θ from an angle using the double-angle formulas. Enter the angle in degrees. Height from Shadow Calculator Height from Shadow Calculator is a mathematics calculator that helps you calculate height measurements or conversions between unit systems. The formula used is: height = shadow × tan(elevation); shadow = height / tan(elevation). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Hyperbolic Trig Functions Calculator Hyperbolic Trig Functions Calculator is a mathematics calculator that helps you calculate hyperbolic trig functions values from your input data. The formula used is: sinh(x) = (eˣ − e⁻ˣ)/2; cosh(x) = (eˣ + e⁻ˣ)/2; tanh(x) = sinh(x)/cosh(x). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Incline & Ramp Angle Calculator Incline & Ramp Angle Calculator is a mathematics calculator that helps you calculate incline & ramp angle values from your input data. The formula used is: angle = arctan(height/length); gradient = (height/length) × 100%; hypotenuse = √(h²+l²). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Inverse Cosine (arccos) Calculator The Inverse Cosine (arccos) Calculator finds the angle whose cosine equals a value between -1 and 1, shown in both degrees and radians. The formula used is: arccos(x) = the angle θ such that cos(θ) = x, with the result in [0°, 180°]. Inverse Sine (arcsin) Calculator The Inverse Sine (arcsin) Calculator finds the angle whose sine equals a value between -1 and 1, shown in both degrees and radians. The formula used is: arcsin(x) = the angle θ such that sin(θ) = x, with the result in [-90°, 90°]. Inverse Tangent (arctan) Calculator The Inverse Tangent (arctan) Calculator finds the angle whose tangent equals a value, and also computes atan2(y, x) for full-circle direction. The formula used is: arctan(x) returns an angle in (-90°, 90°); atan2(y, x) returns an angle in (-180°, 180°]. Inverse Trigonometric Calculator The Inverse Trigonometric Calculator finds the angle whose sine, cosine, or tangent equals a given value, in both degrees and radians. Choose the function and enter the value. Involute Function Calculator The Involute Function Calculator computes inv(α) = tan α − α (with α in radians), used in gear tooth geometry. Enter the pressure angle in degrees. Law of Cosines Calculator Law of Cosines Calculator is a mathematics calculator that helps you calculate law of cosines values from your input data. The formula used is: cos(A) = (b² + c² − a²) / (2bc). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Law of Sines Calculator Law of Sines Calculator is a mathematics calculator that helps you calculate law of sines values from your input data. The formula used is: a/sin(A) = b/sin(B) = c/sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Phase Shift Calculator Phase Shift Calculator determines horizontal displacement of sinusoidal functions. For y = A·sin(Bx - C) + D, phase shift = C/B. Polar to Cartesian Converter Polar to Cartesian Converter is a mathematics calculator that helps you calculate a measurement from one unit to an equivalent in another unit. The formula used is: Polar→Cartesian: x = r·cos(θ), y = r·sin(θ); Cartesian→Polar: r = √(x²+y²), θ = atan2(y,x). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Power Reducing Formula (Trigonometry) Power-reducing formulas convert higher powers of trig functions to first power (for integration). Radian Measure & Arc Calculator Radian Measure & Arc Calculator is a mathematics calculator that helps you calculate radian measure & arc values from your input data. The formula used is: arc = r×θ(rad); sector area = ½r²θ; chord = 2r×sin(θ/2). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Reference Angle Calculator Reference Angle Calculator is a mathematics calculator that helps you calculate reference angle values from your input data. The formula used is: Normalize to 0–360°, then: Q1→θ, Q2→180°−θ, Q3→θ−180°, Q4→360°−θ. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Right Triangle Trig Calculator Right Triangle Trig Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: opposite = hypotenuse × sin(θ), adjacent = hypotenuse × cos(θ). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Sine Calculator Sine Calculator is a mathematics calculator that helps you calculate sine values from your input data. The formula used is: sin(θ) where θ is converted to radians if given in degrees. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Slope & Angle Calculator Slope & Angle Calculator is a mathematics calculator that helps you calculate slope & angle values from your input data. The formula used is: angle = arctan(rise/run); percent grade = (rise/run) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Surveying Triangle Calculator Surveying Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: ΔN = distance × cos(bearing); ΔE = distance × sin(bearing). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Tangent Calculator Tangent Calculator is a mathematics calculator that helps you calculate tangent values from your input data. The formula used is: tan(θ) = sin(θ) / cos(θ) = opposite / adjacent. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Triangle Angle Calculator Triangle Angle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: C = 180° − A − B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Triangle Area using Trig Triangle Area using Trig is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = ½ × a × b × sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Triangle Median Calculator Triangle Median Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: m_a = ½√(2b²+2c²−a²); centroid divides each median 2:1 from vertex. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Trig Function Value Calculator The Trig Function Value Calculator gives the sine, cosine, tangent, and their reciprocals for any angle. Enter the angle in degrees to see all six function values. Trig Identity Verifier Trig Identity Verifier is a mathematics calculator that helps you calculate trig identity verifier values from your input data. The formula used is: sin(2A) = 2sin(A)cos(A); cos(2A) = cos²A − sin²A; tan(2A) = 2tan(A)/(1−tan²A). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Unit Circle Calculator Unit Circle Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: x = cos(θ), y = sin(θ) on the unit circle (radius = 1). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Angle Between Two Vectors Calculator The Angle Between Two Vectors Calculator finds the angle separating two 3D vectors using the dot product and their magnitudes. The formula used is: θ = cos⁻¹[(A·B) ÷ (|A||B|)]. Results are given in degrees and radians.

API Rate Limit & Capacity The API Rate Limit & Capacity Calculator estimates how many requests an API can serve and what they cost. Enter a requests-per-second limit (or a fixed monthly volume) and the cost per request to see daily, hourly, and monthly figures. Monthly (auto) = RPS × 86,400 × 30; hourly peak = RPS × 3,600; monthly cost = monthly requests × cost per request. App Store Revenue Calculator The App Store Revenue Calculator estimates how much an app earns from downloads, paying-user conversion, and average spend, after the store's commission. Paying users = downloads × conversion%; gross = paying users × average revenue; net = gross × (1 − fee%). Bandwidth & Download Speed Calculator Estimate how long a file takes to download at a given internet speed, and how quickly a monthly data cap runs out. Enter the file size in GB, your connection speed in Mbps, and your monthly data allowance, and the calculator returns the download time and how many days of continuous use your cap allows. Cloud Server Cost Calculator Cloud Server Cost Calculator is a mathematics calculator that helps you calculate cloud server cost values from your input data. The formula used is: CPU: cores × $0.048/hr × hours\nRAM: GB × $0.006/hr × hours\nStorage: GB × $0.023/mo\nBandwidth: GB × $0.09/mo. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Code Complexity Estimator Code Complexity Estimator is a mathematics calculator that helps you calculate code complexity estimator values from your input data. The formula used is: Cyclomatic (est.) = Functions × Avg Nesting Depth\nMaintainability Index = 171 − 5.2·ln(depth×functions) − 0.23·cyclomatic − 16.2·ln(LOC). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. CPU Performance Score CPU Performance Score is a mathematics calculator that helps you calculate academic scores or grade equivalents. The formula used is: Multi-Core Score ≈ Single-Core × Cores × 0.7\nPeak MIPS (est.) = Clock (GHz) × Threads × 1000\nEfficiency = Single-Core Score / Clock. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Crypto Mining Profitability Crypto Mining Profitability is a mathematics calculator that helps you calculate profit, loss, or margin from revenue and cost figures. The formula used is: Daily Coins = Hashrate (MH/s) × Reward (coins/MH/day)\nDaily Revenue = Daily Coins × Coin Price\nDaily Power = (Watts/1000) × 24 × Electricity Rate\nProfit = Revenue − Power Cost. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Data Storage Converter Data Storage Converter is a mathematics calculator that helps you calculate a measurement from one unit to an equivalent in another unit. The formula used is: Bytes = Value × 1024^n (KB=1, MB=2, GB=3, TB=4, PB=5)\nConversion = Bytes / 1024^n_target. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Database Size Estimator Database Size Estimator calculates the estimated storage size of a database table. Raw Data (MB) = Rows × Cols × Bytes/Col / 1,000,000. Index Overhead = Indexes × 10%. Total = Raw × (1 + Index%). Growth = Raw × (1 + monthly%)^12. Developer Hourly Rate Calculator Developer Hourly Rate Calculator is a mathematics calculator that helps you calculate equivalent salary or wage across different pay periods. The formula used is: Total Monthly = Salary × (1 + Benefits%/100)\nHourly Cost = Total Monthly / Working Hours\nUSD Hourly = Hourly (PKR) / Exchange Rate. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Email Marketing Calculator Email Marketing Calculator is a mathematics calculator that helps you calculate email marketing values from your input data. The formula used is: Opens = List × Open Rate%\nClicks = List × CTR%\nConversions = List × Conversion Rate%\nRevenue = Conversions × AOV. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Hash & Encryption Storage Size Hash & Encryption Storage Size is a mathematics calculator that helps you calculate hash and encryption storage size from hash bit length and record count. The formula used is: Hash Size (bytes) = Hash Bits / 8\nTotal Storage (MB) = Hash Size × Records / 1,000,000\nOverhead% = (Hash Size / Plaintext Size) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. IPv4 Subnet Calculator IPv4 Subnet Calculator is a mathematics calculator that helps you calculate ipv4 subnet values from your input data. The formula used is: Subnet Mask: set leftmost CIDR bits to 1, rest to 0\nUsable Hosts = 2^(32−CIDR) − 2\nNetwork = IP AND Mask\nBroadcast = Network OR ~Mask. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. IT Support Ticket SLA Calculator IT Support Ticket SLA Calculator is a mathematics calculator that helps you calculate it support ticket sla values from your input data. The formula used is: SLA Compliance = (Resolved Within SLA / Total) × 100\nCost per Ticket = Avg Hours × Hourly Rate\nGap = SLA Target − Compliance. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Mobile App Size Calculator The Mobile App Size Calculator estimates an app's download and install size from its code size and image and audio assets. Total = base code + image assets + audio assets; download ≈ 70% of total (compressed) and install ≈ 130% of total (decompressed plus data). Network Latency Calculator Network Latency Calculator is a mathematics calculator that helps you calculate network latency values from your input data. The formula used is: Propagation (ms) = Distance (km) / Speed (km/s) × 1000\nTotal = Propagation + Hops × Hop Latency\nRTT = Total × 2. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Password Strength & Crack Time Password Strength & Crack Time is a mathematics calculator that helps you calculate password strength & crack time values from your input data. The formula used is: Charset = 26 (lower) + 26 (upper) + 10 (digits) + 32 (symbols)\nCombinations = Charset ^ Length\nCrack Time = Combinations / 10^12 (GPU brute force). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Pixel Density (PPI) Calculator Pixel Density (PPI) Calculator is a mathematics calculator that helps you calculate density from an object's mass and volume. The formula used is: Diagonal (px) = √(width² + height²)\nPPI = Diagonal (px) / Diagonal (inches)\nViewing Distance (cm) = 3438 / PPI [30 arcmin rule]. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. RGB to HEX Color Converter RGB to HEX Color Converter is a mathematics calculator that helps you calculate a measurement from one unit to an equivalent in another unit. The formula used is: HEX = '#' + R.toString(16) + G.toString(16) + B.toString(16)\nLuminance = 0.299R + 0.587G + 0.114B\nHSL: L = (max+min)/2; S = (max-min)/(1−|2L−1|). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Screen Aspect Ratio Calculator Work out the simplified aspect ratio of a screen, image or video from its width and height, identify common names like 16:9 or 4:3, and scale the resolution to a new width while keeping the same proportions. Enter the pixel dimensions to see the ratio, megapixels, decimal ratio and a scaled resolution. SEO Organic Traffic Calculator SEO Organic Traffic Calculator is a mathematics calculator that helps you calculate seo organic traffic values from your input data. The formula used is: Monthly Clicks = Monthly Searches × CTR%\nAd Value = Monthly Clicks × CPC. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Server Uptime & SLA Calculator Server Uptime & SLA Calculator is a mathematics calculator that helps you calculate server uptime & sla values from your input data. The formula used is: Allowed Downtime (min/yr) = (1 − Uptime%) × 525,600\nMonthly = Annual / 12\nDaily = Annual / 365. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Software License Cost Calculator Software License Cost Calculator is a mathematics calculator that helps you calculate software license cost values from your input data. The formula used is: Per-User: Monthly = Users × Price/User\nEnterprise: Monthly = Flat Rate\nFreemium: Monthly = Premium Users × Price/User\nBreak-Even = Enterprise Monthly / Price per User. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Website Annual Cost Calculator Website Annual Cost Calculator is a mathematics calculator that helps you calculate website annual cost values from your input data. The formula used is: First Year = Domain + Hosting×12 + SSL + Maintenance×12 + Development\nOngoing Annual = Domain + Hosting×12 + SSL + Maintenance×12. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Website Load Time Estimator Website Load Time Estimator is a mathematics calculator that helps you calculate website load time estimator values from your input data. The formula used is: Transfer Time (ms) = Page Size (KB) × 8 / Speed (Mbps)\nTotal Load = Transfer + Server Latency\nConversion drop ≈ 7% per second. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Area Calculator Popular The Area Calculator finds the area of common shapes — rectangle, square, triangle, circle, trapezoid, parallelogram, and ellipse — from their dimensions. The formulas used are: Rectangle: l×w. Square: s². Triangle: ½bh. Circle: πr². Trapezoid: ½(a+b)h. Parallelogram: bh. Ellipse: πab. Distance Calculator Distance Calculator is a mathematics calculator that helps you calculate distances between two or more points. The formula used is: d = √((x₂−x₁)² + (y₂−y₁)²). Midpoint = ((x₁+x₂)/2, (y₁+y₂)/2). Derived from the Pythagorean theorem.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Pythagorean Theorem Calculator Popular Pythagorean Theorem Calculator is a mathematics calculator that helps you calculate pythagorean theorem values from your input data. The formula used is: a² + b² = c². Find hypotenuse: c = √(a² + b²). Find a leg: a = √(c² − b²). Angles: sin(A) = a/c, sin(B) = b/c.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Slope Calculator Slope Calculator is a mathematics calculator that helps you calculate slope values from your input data. The formula used is: Slope m = (y₂−y₁) / (x₂−x₁). Line equation: y = mx + b where b = y₁ − m×x₁. Distance = √((Δx)² + (Δy)²). Midpoint = ((x₁+x₂)/2, (y₁+y₂)/2).. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Triangle Calculator Popular Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = √(s(s−a)(s−b)(s−c)) where s = (a+b+c)/2 (Heron's formula). Angle A = arccos((b²+c²−a²)/(2bc)) — law of cosines.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Volume Calculator Popular Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: Cube: a³. Rectangular prism: l×w×h. Cylinder: πr²h. Cone: ⅓πr²h. Sphere: 4/3 πr³. Pyramid: ⅓×base_area×h.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Attendance Percentage Calculator Work out your class attendance percentage and how it compares with a required minimum (commonly 75%). Enter the total classes held, the number you attended and the required percentage, and the calculator shows your current attendance, whether you are eligible, how many classes you can still safely miss, and — if you are short — how many classes in a row you need to attend to recover. CGPA to Percentage Calculator CGPA to Percentage Calculator is a mathematics calculator that helps you calculate a percentage from a part and a whole, or a percentage change. The formula used is: 4.0 Scale: % = CGPA/4×100 | % = (CGPA−0.75)×10\n5.0 Scale: % = CGPA/5×100\n10.0 Scale: % = CGPA×9.5. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Class Rank & Percentile Class Rank & Percentile is a mathematics calculator that helps you calculate a percentage from a part and a whole, or a percentage change. The formula used is: Percentile = (1 − Rank/Total) × 100\nTop % = Rank ÷ Total × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Exam Score & Percentile Calculator Exam Score & Percentile Calculator is a mathematics calculator that helps you calculate a percentage from a part and a whole, or a percentage change. The formula used is: Percentage = Score ÷ Total × 100\nZ-Score = (Score − Class Avg) ÷ Std Dev\nPercentile ≈ 50 ± (|Z| × 34.1 / 3) capped at 99th. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Final Grade Calculator Final Grade Calculator is a mathematics calculator that helps you calculate academic scores or grade equivalents. The formula used is: Needed = (Target − Current × (100 − Final Weight)/100) ÷ (Final Weight/100). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. GPA Calculator GPA Calculator is a mathematics calculator that helps you calculate academic scores or grade equivalents. The formula used is: Quality Points = Σ(Credits × Grade Points)\nGPA = Quality Points ÷ Total Credits. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Knowledge Retention Calculator Knowledge Retention Calculator is a mathematics calculator that helps you calculate knowledge retention values from your input data. The formula used is: Retention = Initial × e^(−Days/7) [Ebbinghaus Forgetting Curve]\nAfter 1 Review: × 1.5 (capped at 100%)\nAfter 2 Reviews: × 1.3 more. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Marks to Percentage Calculator Marks to Percentage Calculator is a mathematics calculator that helps you calculate a percentage from a part and a whole, or a percentage change. The formula used is: Percentage = Marks Obtained ÷ Total Marks × 100\nDistinction = 75% of Total Marks. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Study Method Time Comparison Study Method Time Comparison is a mathematics calculator that helps you calculate study method time comparison values from your input data. The formula used is: Digital Total = Lectures + Lectures/ReviewMultiplier\nHandwriting Total = Lectures×SpeedFactor + Lectures/(ReviewMult×(1+Bonus%)). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Test Score Estimator (GMAT/GRE Style) Test Score Estimator (GMAT/GRE Style) is a mathematics calculator that helps you calculate academic scores or grade equivalents. The formula used is: Raw Score = Correct ÷ Total × 100\nScaled Score = Accuracy × Difficulty × 800\nPercentile estimated from accuracy band. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. University Application Score Estimator University Application Score Estimator is a mathematics calculator that helps you calculate academic scores or grade equivalents. The formula used is: Score = GPA/4×100×0.35 + SAT/1600×100×0.25 + EC/10×100×0.15 + Essay/10×100×0.15 + Rec/10×100×0.10. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Weighted Test Score Calculator Weighted Test Score Calculator is a mathematics calculator that helps you calculate weight values or weight conversions between unit systems. The formula used is: Weighted Grade = (Quiz/QuizTotal × QuizWeight) + (Midterm/MidtermTotal × MidtermWeight) + (Final/FinalTotal × FinalWeight). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Average Calculator Popular Find the mean, median, mode and range of a list of numbers at once. Enter your values separated by commas or spaces and the calculator returns the mean (arithmetic average), the median (middle value), the mode (most frequent value), the range (max − min), plus the count and sum. It's a quick way to summarise a data set. Big Number Calculator Add, subtract, multiply, divide, raise to a power, or take the modulo of very large whole numbers with exact precision. This calculator uses arbitrary-precision integer arithmetic (BigInt), so results never lose accuracy no matter how many digits are involved — far beyond what an ordinary calculator can handle. Factor Calculator Factor Calculator is a mathematics calculator that helps you calculate factor values from your input data. The formula used is: Factors are found by testing divisors up to √n (each divisor i pairs with n/i). Prime factorisation repeatedly divides by the smallest prime until 1 is reached.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Fraction Calculator Popular Fraction Calculator is a mathematics calculator that helps you calculate fraction values from your input data. The formula used is: Reduce by dividing numerator and denominator by their GCD. Addition: a/b + c/d = (ad+bc)/(bd). Subtraction: (ad−bc)/(bd). Multiplication: (ac)/(bd). Division: (ad)/(bc). All results then simplified.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Percentage Calculator Popular Percentage Calculator is a mathematics calculator that helps you calculate a percentage from a part and a whole, or a percentage change. The formula used is: A% of B = (A ÷ 100) × B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Ratio Calculator Popular Ratio Calculator is a mathematics calculator that helps you calculate the ratio between two numbers in simplified form. The formula used is: Simplify: divide both terms by their GCD. Proportion: if a:b = c:d, then d = (b × c) / a.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Rounding Calculator Rounding Calculator is a mathematics calculator that helps you calculate rounding values from your input data. The formula used is: The number is scaled by 10^places, rounded according to the selected rule, then scaled back. Negative places round to the nearest ten, hundred or thousand.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Babylonian Numbers Calculator Convert decimal numbers to and from the ancient Babylonian base-60 (sexagesimal) numeral system. Bitwise AND Calculator The Bitwise AND Calculator computes the bitwise AND of two integers: each output bit is 1 only when the matching bit is 1 in both numbers. The formula used is: result = A & B. It also shows the result in binary.

Batch Task Time Calculator Estimate how long a batch job takes to finish. Enter the total number of items, your processing rate, the per-batch setup time and the batch size, and the calculator works out the number of batches, total processing time, total setup time, and how many working days it adds up to. Daily Energy Management Calculator Daily Energy Management Calculator is a mathematics calculator that helps you calculate a daily energy management score from sleep, exercise, caffeine, stress and meals. The formula used is: Score = Sleep×0.35 + Exercise×0.20 + Caffeine×0.10 + Stress×0.20 + Meals×0.15\n(Each component scaled 0–100 before weighting). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Daily Productivity Score Daily Productivity Score is a mathematics calculator that helps you calculate academic scores or grade equivalents. The formula used is: Score = Completion Rate × 0.4 + Focus Rate × 0.35 + Deep Work % × 0.25\nCompletion = Completed ÷ Planned × 100\nFocus Rate = Focus ÷ (Focus + Distracted) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Daily Screen Time Cost Daily Screen Time Cost is a mathematics calculator that helps you calculate daily screen time cost values from your input data. The formula used is: Non-Work Screen = Total Screen − Work Hours\nDaily Cost = Non-Work Screen × Hourly Wage\nAnnual Cost = Daily Cost × 365. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Email Productivity Calculator Email Productivity Calculator is a mathematics calculator that helps you calculate email productivity values from your input data. The formula used is: Email Hours/Day = Emails × Minutes/Email ÷ 60\n% of Workday = Email Hours ÷ Workday Hours × 100\nRecovered Hours = (Current − Target) × Emails × 250 ÷ 60. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Focus & Attention Calculator Plan your focus sessions and see how much real focused work you fit into a day. Enter your focus-session length, break length and number of sessions, and the calculator returns your daily focus hours, the ratio of focus time to total time, your daily break time and your focus hours across a five-day week. It's ideal for Pomodoro-style schedules. Habit Streak & Impact Calculator Habit Streak & Impact Calculator is a mathematics calculator that helps you calculate habit streak & impact values from your input data. The formula used is: Streak Hours = Minutes/Day × Streak ÷ 60\nAnnual Hours = Minutes/Day × 365 ÷ 60\nMastery Years = 10,000 ÷ Daily Hours ÷ 365. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Language Learning Time Estimator Language Learning Time Estimator is a mathematics calculator that helps you calculate how long it takes to learn a language based on your study hours per day. The formula used is: Days = Required Hours (CEFR) ÷ Hours per Day\nMonths = Days ÷ 30 | Years = Days ÷ 365. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Reading List Completion Time Reading List Completion Time is a mathematics calculator that helps you calculate reading list completion time values from your input data. The formula used is: Days per Book = Pages per Book ÷ Pages per Day\nTotal Days = Days per Book × Books in List\nBooks per Year = 365 ÷ Days per Book. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Reading Speed & Comprehension Reading Speed & Comprehension is a mathematics calculator that helps you calculate speed or velocity from a given distance and time. The formula used is: WPM = Words Read ÷ Time (min)\nTime for N words = N ÷ WPM\nBook time (hrs) = 80,000 ÷ WPM ÷ 60. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Return on Time Investment Return on Time Investment is a mathematics calculator that helps you calculate investment growth and returns over a chosen period. The formula used is: Total Benefit = Weekly Benefit × Duration\nROI % = (Total Benefit − Hours Invested) ÷ Hours Invested × 100\nBreak-Even = Hours Invested ÷ Weekly Benefit. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Sprint Velocity Calculator (Agile) Sprint Velocity Calculator (Agile) is a mathematics calculator that helps you calculate speed or velocity from a given distance and time. The formula used is: Points per Person = Velocity ÷ Team Size\nPoints per Day = Velocity ÷ Sprint Days\nSprints to Finish = ⌈Backlog ÷ Velocity⌉. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Typing Speed (WPM) Calculator Typing Speed (WPM) Calculator is a mathematics calculator that helps you calculate speed or velocity from a given distance and time. The formula used is: Gross WPM = Words Typed ÷ Time (min)\nAccuracy = (Words − Errors) ÷ Words × 100\nNet WPM = Gross WPM × Accuracy ÷ 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Bessel Function Calculator Calculate the Bessel function of the first kind J₀(x) and J₁(x) using series expansion.

Bilinear Interpolation Calculator Perform bilinear interpolation to estimate a value at an arbitrary point (x,y) within a rectangular grid of known values.

Binary Addition Calculator Add two binary numbers and see the sum in binary, along with its decimal value. Enter each number using only 0s and 1s; the calculator adds them following base-2 carry rules and shows the binary sum plus the decimal equivalent so you can check your work. Binary Calculator Add, subtract, multiply, or divide two binary numbers and see the result in binary, decimal, and hexadecimal. Enter each value using only 0s and 1s, choose an operation, and the calculator converts to decimal, performs the operation, and converts the answer back — handy for learning base-2 arithmetic and digital logic. Binary Division Calculator Divide one binary number by another and see the quotient and remainder in both binary and decimal. Enter the dividend and divisor as strings of 0s and 1s, and this calculator converts them to decimal, divides, then converts the results back to base-2. Binary Fraction Calculator Convert a binary fraction such as 101.101 into its decimal value. Enter a binary number with an optional point, and this calculator adds the integer part to the fractional part, where each bit after the point is worth 1/2, 1/4, 1/8, and so on. Binary Multiplication Calculator Multiply two binary numbers and see the product in both binary and decimal. Enter each value as a string of 0s and 1s and this calculator converts them to decimal, multiplies, then converts the product back to base-2. Binary Operations Calculator Perform bitwise AND, OR, and XOR on two binary numbers and see every result in both binary and decimal. Enter two strings of 0s and 1s and this calculator lines them up bit by bit and applies each logical operation. Binary Subtraction Calculator Subtract one binary number from another and see the difference in both binary and decimal. Enter the two numbers as strings of 0s and 1s and this calculator converts them to decimal, subtracts, then converts the result back to base-2. Bit Shift Calculator Shift the bits of an integer left or right by a chosen number of positions and see the result in decimal and binary. A left shift multiplies by powers of two; a right shift divides (rounding toward zero). Bitwise Calculator Apply the bitwise AND, OR, and XOR operators to two integers. Enter two whole numbers and this calculator compares them bit by bit and returns each result in decimal. Hex Calculator Hex Calculator is a mathematics calculator that helps you calculate hex values from your input data. The formula used is: Each hex value is converted to decimal, the operation is applied, and the result is converted back to hexadecimal, decimal and binary.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Scientific Notation Calculator Scientific Notation Calculator is a mathematics calculator that helps you calculate scientific notation values from your input data. The formula used is: Scientific notation writes a number as m × 10ⁿ where 1 ≤ |m| < 10. The exponent n is ⌊log₁₀|value|⌋ and m = value ÷ 10ⁿ.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Binomial Coefficient Calculator Compute the binomial coefficient 'n choose k' — the number of ways to pick k items from a set of n when order does not matter. Enter n and k and this calculator returns C(n, k) = n! / (k!·(n−k)!).

Cartesian to Polar Calculator Convert Cartesian coordinates (x, y) to polar coordinates (r, θ) and vice versa.

Center Of Ellipse Calculator Center Of Ellipse Calculator is a mathematics calculator that helps you calculate center of ellipse values from your input data. The formula used is: Cents = Ares × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Center Of Mass Calculator Center Of Mass Calculator is a mathematics calculator that helps you calculate center of mass values from your input data. The formula used is: Cents = Ares × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Central Angle Calculator Central Angle Calculator is a mathematics calculator that helps you calculate central angle values from your input data. The formula used is: Cents = Ares × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Centroid Calculator Centroid Calculator is a mathematics calculator that helps you calculate return on investment from gains and cost. The formula used is: Cents = Ares × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Centroid Of A Triangle Calculator Centroid Of A Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Change Of Base Calculator Change Of Base Calculator is a mathematics calculator that helps you calculate pH or pOH from ion concentrations. The formula used is: ((New - Old) ÷ Old) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Check Similarity In Right Triangles Calculator Check Similarity In Right Triangles Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cholesky Decomposition Calculator Cholesky Decomposition Calculator is a mathematics calculator that helps you calculate cholesky decomposition values from your input data. The formula used is: (Element mass / Compound mass) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Calculator Circle Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Center Calculator Circle Center Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Diameter Calculator Circle Diameter Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Equation Calculator Circle Equation Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Formula Calculator Circle Formula Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Length Calculator Circle Length Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Measurements Calculator Circle Measurements Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Perimeter Calculator Circle Perimeter Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circle Theorems Calculator Circle Theorems Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circumcenter Of A Triangle Calculator Circumcenter Of A Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circumference Area Circle Calculator Circumference Area Circle Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circumference Calculator Circumference Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: C = 2 × π × r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circumference To Diameter Calculator Circumference To Diameter Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: C = 2 × π × r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circumference To Radius Calculator Circumference To Radius Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: C = 2 × π × r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Circumscribed Circle Calculator Circumscribed Circle Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Classifying Triangles Calculator Classifying Triangles Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Completing The Square Practice Calculator Completing The Square Practice Calculator is a mathematics calculator that helps you calculate completing the square practice values from your input data. The formula used is: N². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Completing The Square Works Calculator Completing The Square Works Calculator is a mathematics calculator that helps you calculate completing the square works values from your input data. The formula used is: N². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Complex Number Calculator Complex Number Calculator is a mathematics calculator that helps you calculate complex number values from your input data. The formula used is: Magnitude = √(a² + b²) | Phase = arctan(b/a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Complex Number To Polar Form Calculator Complex Number To Polar Form Calculator is a mathematics calculator that helps you calculate complex number to polar form values from your input data. The formula used is: Magnitude = √(a² + b²) | Phase = arctan(b/a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Complex Number To Rectangular Form Calculator Complex Number To Rectangular Form Calculator is a mathematics calculator that helps you calculate complex number to rectangular form values from your input data. The formula used is: Magnitude = √(a² + b²) | Phase = arctan(b/a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Complex Number To Trigonometric Form Calculator Complex Number To Trigonometric Form Calculator is a mathematics calculator that helps you calculate complex number to trigonometric form values from your input data. The formula used is: Magnitude = √(a² + b²) | Phase = arctan(b/a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Complex Root Calculator Complex Root Calculator is a mathematics calculator that helps you calculate complex root values from your input data. The formula used is: Magnitude = √(a² + b²) | Phase = arctan(b/a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Condense Logarithms Calculator Condense Logarithms Calculator is a mathematics calculator that helps you calculate condense logarithms values from your input data. The formula used is: Antilog = b^x. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cone Surface Area Calculator Cone Surface Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cone Volume Calculator Cone Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = (4/3) × π × r³. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Convert Fraction To Percentage Calculator Convert Fraction To Percentage Calculator is a mathematics calculator that helps you calculate a percentage from a part and a whole, or a percentage change. The formula used is: (Part ÷ Whole) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Coordinate Distance Calculator Coordinate Distance Calculator is a mathematics calculator that helps you calculate distances between two or more points. The formula used is: Speed = Distance ÷ Time. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cosine Triangle Calculator Cosine Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Crescent Area Calculator Crescent Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cube Surface Area Calculator Cube Surface Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cyclomatic Complexity Calculator Cyclomatic Complexity Calculator is a mathematics calculator that helps you calculate cyclomatic complexity values from your input data. The formula used is: Magnitude = √(a² + b²) | Phase = arctan(b/a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cylinder Circumference Calculator Cylinder Circumference Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: C = 2 × π × r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cylinder Volume Calculator Cylinder Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = (4/3) × π × r³. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cylinder Volume Gallons Calculator Cylinder Volume Gallons Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = (4/3) × π × r³. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Cylinder Volume Liters Calculator Cylinder Volume Liters Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = (4/3) × π × r³. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Decagon Area Calculator Decagon Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Distance From Point To Plane Calculator Distance From Point To Plane Calculator is a mathematics calculator that helps you calculate distances between two or more points. The formula used is: Speed = Distance ÷ Time. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Divide Complex Numbers Calculator Divide Complex Numbers Calculator is a mathematics calculator that helps you calculate divide complex numbers values from your input data. The formula used is: A ÷ B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Divide Fractions Calculator Divide Fractions Calculator is a mathematics calculator that helps you calculate divide fractions values from your input data. The formula used is: A ÷ B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Dodecagon Area Calculator Dodecagon Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Dot Product Calculator Dot Product Calculator is a mathematics calculator that helps you calculate dot product values from your input data. The formula used is: u·v = u₁v₁ + u₂v₂. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Doubling Time Calculator Doubling Time Calculator is a mathematics calculator that helps you calculate doubling time values from your input data. The formula used is: Doubling Time ≈ 70 / Growth Rate %. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. E Power X Calculator E Power X Calculator is a mathematics calculator that helps you calculate power output from energy and time. The formula used is: P = E/t. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Ellipse Area Calculator Ellipse Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Ellipse Circumference Calculator Ellipse Circumference Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: C = 2 × π × r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Ellipse Perimeter Calculator Ellipse Perimeter Calculator is a mathematics calculator that helps you calculate ellipse perimeter values from your input data. The formula used is: C = 2 × π × r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Ellipsoid Volume Calculator Ellipsoid Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = (4/3) × π × r³. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Equation Circle Diameter Endpoints Calculator Equation Circle Diameter Endpoints Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Equilateral Triangle Area Calculator Equilateral Triangle Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Euclidean Distance Calculator Euclidean Distance Calculator is a mathematics calculator that helps you calculate distances between two or more points. The formula used is: Speed = Distance ÷ Time. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Expanding Logarithms Calculator Expanding Logarithms Calculator is a mathematics calculator that helps you calculate expanding logarithms values from your input data. The formula used is: Antilog = b^x. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Exponential Growth Calculator Exponential Growth Calculator is a mathematics calculator that helps you calculate exponential growth values from your input data. The formula used is: P = P₀(1 + r)^t. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Exterior Angles Of A Triangle Calculator Exterior Angles Of A Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Fibonacci Calculator Fibonacci Calculator is a mathematics calculator that helps you calculate fibonacci values from your input data. The formula used is: F(n) = F(n-1) + F(n-2). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Floor Division Calculator Floor Division Calculator is a mathematics calculator that helps you calculate floor division values from your input data. The formula used is: Vision = 20 / (Test Distance / Read Distance). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. General Form Equation Circle Calculator General Form Equation Circle Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. General To Standard Form Circle Calculator General To Standard Form Circle Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Gradient Calculator Gradient Calculator is a mathematics calculator that helps you calculate gradient values from your input data. The formula used is: AA: ≥4.5:1 | AAA: ≥7:1. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Graphing Inequalities 1d Calculator Graphing Inequalities 1d Calculator is a mathematics calculator that helps you calculate pH or pOH from ion concentrations. The formula used is: pH = -log[H+]. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Graphing Quadratic Inequalities Calculator Graphing Quadratic Inequalities Calculator is a mathematics calculator that helps you calculate pH or pOH from ion concentrations. The formula used is: pH = -log[H+]. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Great Circle Calculator Great Circle Calculator is a mathematics calculator that helps you calculate circle properties such as area, perimeter, and radius. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Height Of A Square Pyramid Calculator Height Of A Square Pyramid Calculator is a mathematics calculator that helps you calculate height measurements or conversions between unit systems. The formula used is: N². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Height Of Cone Calculator Height Of Cone Calculator is a mathematics calculator that helps you calculate height measurements or conversions between unit systems. The formula used is: Result = Value A × Value B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Height Of Cylinder Calculator Height Of Cylinder Calculator is a mathematics calculator that helps you calculate height measurements or conversions between unit systems. The formula used is: Result = Value A × Value B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Heptagon Area Calculator Heptagon Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Hexagonal Pyramid Surface Area Calculator Hexagonal Pyramid Surface Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Hollow Cylinder Volume Calculator Hollow Cylinder Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = (4/3) × π × r³. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Imaginary Number Calculator Imaginary Number Calculator is a mathematics calculator that helps you calculate imaginary number values from your input data. The formula used is: Magnitude = √(a² + b²) | Phase = arctan(b/a). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Inequality To Interval Notation Calculator Inequality To Interval Notation Calculator is a mathematics calculator that helps you calculate inequality to interval notation values from your input data. The formula used is: |x| ≤ a means -a ≤ x ≤ a. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Interior And Exterior Triangle Angles Calculator Interior And Exterior Triangle Angles Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Inverse Cosine Calculator Inverse Cosine Calculator is a mathematics calculator that helps you calculate inverse cosine values from your input data. The formula used is: arccos(x) = inverse cosine. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Inverse Sine Calculator Inverse Sine Calculator is a mathematics calculator that helps you calculate inverse sine values from your input data. The formula used is: arcsin(x) = inverse sine. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Inverse Tangent Calculator Inverse Tangent Calculator is a mathematics calculator that helps you calculate inverse tangent values from your input data. The formula used is: arctan(x) = inverse tangent. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Irregular Polygon Area Calculator Irregular Polygon Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Irregular Trapezoid Area Calculator Irregular Trapezoid Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Is It A Right Triangle Calculator Is It A Right Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Is Modulo Associative Calculator Is Modulo Associative Calculator is a mathematics calculator that helps you calculate is modulo associative values from your input data. The formula used is: (a + b) + c = a + (b + c). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Isosceles Right Triangle Calculator Isosceles Right Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Isosceles Right Triangle Hypotenuse Calculator Isosceles Right Triangle Hypotenuse Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Isosceles Trapezoid Area Calculator Isosceles Trapezoid Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Isosceles Triangle A Calculator Isosceles Triangle A Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Isosceles Triangle Angles Calculator Isosceles Triangle Angles Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Isosceles Triangle Area Calculator Isosceles Triangle Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Isosceles Triangle Height Calculator Isosceles Triangle Height Calculator is a mathematics calculator that helps you calculate height measurements or conversions between unit systems. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Isosceles Triangle Side Calculator Isosceles Triangle Side Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Kite Area Calculator Kite Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Lateral Area Of Cone Calculator Lateral Area Of Cone Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Lateral Area Trapezoidal Prism Calculator Lateral Area Trapezoidal Prism Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Lateral Surface Area Cylinder Calculator Lateral Surface Area Cylinder Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Least Squares Regression Calculator Least Squares Regression Calculator is a mathematics calculator that helps you calculate least squares regression values from your input data. The formula used is: N². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Length And Width Of Rectangle Given Perimeter Calculator Length And Width Of Rectangle Given Perimeter Calculator is a mathematics calculator that helps you calculate length and width of rectangle given perimeter values from your input data. The formula used is: C = 2 × π × r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Length Of A Line Segment Calculator Length Of A Line Segment Calculator is a mathematics calculator that helps you calculate length of a line segment values from your input data. The formula used is: Result = Value A × Value B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Length Of A Rectangle Calculator Length Of A Rectangle Calculator is a mathematics calculator that helps you calculate length of a rectangle values from your input data. The formula used is: Result = Value A × Value B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Length Width Area Rectangle Calculator Length Width Area Rectangle Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Linear Feedback Shift Register Calculator Linear Feedback Shift Register Calculator is a mathematics calculator that helps you calculate linear feedback shift register values from your input data. The formula used is: Earnings = Hourly Rate × Hours × Days. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Log 2 Calculator Log 2 Calculator is a mathematics calculator that helps you calculate log 2 values from your input data. The formula used is: Antilog = b^x. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Long Addition Calculator Long Addition Calculator is a mathematics calculator that helps you calculate long addition values from your input data. The formula used is: A + B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Long Division Calculator Long Division Calculator is a mathematics calculator that helps you calculate long division values from your input data. The formula used is: Vision = 20 / (Test Distance / Read Distance). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Long Subtraction Calculator Long Subtraction Calculator is a mathematics calculator that helps you calculate long subtraction values from your input data. The formula used is: A - B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Lu Decomposition Calculator Lu Decomposition Calculator is a mathematics calculator that helps you calculate lu decomposition values from your input data. The formula used is: (Element mass / Compound mass) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Magic Square Calculator Magic Square Calculator is a mathematics calculator that helps you calculate magic square values from your input data. The formula used is: N². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Manhattan Distance Calculator Manhattan Distance Calculator is a mathematics calculator that helps you calculate distances between two or more points. The formula used is: Speed = Distance ÷ Time. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Math Power Calculator Math Power Calculator is a mathematics calculator that helps you calculate power output from energy and time. The formula used is: P = E/t. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Matrix Addition Calculator Matrix Addition Calculator is a mathematics calculator that helps you calculate matrix addition values from your input data. The formula used is: A + B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Matrix Inverse Calculator Matrix Inverse Calculator is a mathematics calculator that helps you calculate matrix inverse values from your input data. The formula used is: Adjoint of 2×2 matrix. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Matrix Power Calculator Matrix Power Calculator is a mathematics calculator that helps you calculate power output from energy and time. The formula used is: P = E/t. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Midsegment Of A Triangle Calculator Midsegment Of A Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Missing Side Of A Right Triangle Calculator Missing Side Of A Right Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Multiply Complex Numbers Calculator Multiply Complex Numbers Calculator is a mathematics calculator that helps you calculate a gratuity amount and total bill from a pre-tax amount. The formula used is: A × B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Multiplying Binomials Calculator Multiplying Binomials Calculator is a mathematics calculator that helps you calculate a gratuity amount and total bill from a pre-tax amount. The formula used is: A × B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Multiplying Exponents Calculator Multiplying Exponents Calculator is a mathematics calculator that helps you calculate a gratuity amount and total bill from a pre-tax amount. The formula used is: A × B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Multiplying Fractions Calculator Multiplying Fractions Calculator is a mathematics calculator that helps you calculate a gratuity amount and total bill from a pre-tax amount. The formula used is: A × B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Multiplying Polynomials Calculator Multiplying Polynomials Calculator is a mathematics calculator that helps you calculate a gratuity amount and total bill from a pre-tax amount. The formula used is: A × B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Multiplying Radicals Calculator Multiplying Radicals Calculator is a mathematics calculator that helps you calculate a gratuity amount and total bill from a pre-tax amount. The formula used is: A × B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Multiplying Scientific Notation Calculator Multiplying Scientific Notation Calculator is a mathematics calculator that helps you calculate a gratuity amount and total bill from a pre-tax amount. The formula used is: A × B. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Natural Log Calculator Natural Log Calculator is a mathematics calculator that helps you calculate natural log values from your input data. The formula used is: Antilog = b^x. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Negative Log Calculator Negative Log Calculator is a mathematics calculator that helps you calculate negative log values from your input data. The formula used is: Antilog = b^x. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Oblique Triangle Calculator Oblique Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Obtuse Triangle Calculator Obtuse Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Orthocenter Calculator Orthocenter Calculator is a mathematics calculator that helps you calculate orthocenter values from your input data. The formula used is: Cents = Ares × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Parallel Line Calculator Parallel Line Calculator is a mathematics calculator that helps you calculate parallel line values from your input data. The formula used is: 1/R_total = 1/R₁ + 1/R₂. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Parallelogram Area Calculator Parallelogram Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Parallelogram Perimeter Calculator Parallelogram Perimeter Calculator is a mathematics calculator that helps you calculate parallelogram perimeter values from your input data. The formula used is: C = 2 × π × r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Partial Fraction Decomposition Calculator Partial Fraction Decomposition Calculator is a mathematics calculator that helps you calculate partial fraction decomposition values from your input data. The formula used is: (Element mass / Compound mass) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Pascals Triangle Calculator Pascals Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: P = F/A. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Percentage Change Calculator Percentage Change Calculator is a mathematics calculator that helps you calculate a percentage from a part and a whole, or a percentage change. The formula used is: ((New - Old) ÷ Old) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Perfect Square Calculator Perfect Square Calculator is a mathematics calculator that helps you calculate perfect square values from your input data. The formula used is: N². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Polar Decomposition Calculator Polar Decomposition Calculator is a mathematics calculator that helps you calculate polar decomposition values from your input data. The formula used is: (Element mass / Compound mass) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Power Function Calculator Calculate power (in watts) from energy (in joules) and time (in seconds). Power is the rate at which energy is transferred or used: P = E/t. Essential for physics, engineering, and energy calculations. Prime Number Calculator Prime Number Calculator is a mathematics calculator that helps you calculate prime number values from your input data. The formula used is: Prime: Only divisible by 1 and itself. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Pythagoras Triangle Calculator Pythagoras Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Qr Decomposition Calculator Qr Decomposition Calculator is a mathematics calculator that helps you calculate qr decomposition values from your input data. The formula used is: (Element mass / Compound mass) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Rectangular Prism Volume Calculator Rectangular Prism Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = (4/3) × π × r³. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Rectangular Pyramid Volume Calculator Rectangular Pyramid Volume Calculator is a mathematics calculator that helps you calculate the volume of a three-dimensional shape or container. The formula used is: V = (4/3) × π × r³. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Regular Polygon Perimeter Calculator Regular Polygon Perimeter Calculator is a mathematics calculator that helps you calculate regular polygon perimeter values from your input data. The formula used is: C = 2 × π × r. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Relative Change Calculator Relative Change Calculator is a mathematics calculator that helps you calculate relative change values from your input data. The formula used is: ((New - Old) ÷ Old) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Right Triangle Area Calculator Right Triangle Area Calculator is a mathematics calculator that helps you calculate the area of a geometric shape from its dimensions. The formula used is: Area = π × r². Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Right Triangle Side Angle Calculator Right Triangle Side Angle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Right Triangle Trigonometry Calculator Right Triangle Trigonometry Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = ½ab sin(C). Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Consecutive Integers Calculator The Consecutive Integers Calculator finds a run of consecutive integers that add up to a target sum. Enter the target sum and how many consecutive integers to use. Divisors Calculator The Divisors Calculator lists all positive divisors (factors) of a whole number, along with how many there are and their sum. Enter a positive integer. Euclidean Algorithm Calculator (GCD) The Euclidean Algorithm Calculator finds the greatest common divisor (GCD) of two integers using repeated division, and also gives the least common multiple (LCM). Enter two whole numbers. Exponential Form (Prime Factorization) Calculator The Exponential Form Calculator writes a whole number as a product of prime powers, such as 72 = 2³ × 3². Enter a whole number greater than 1. Galileo's Paradox Calculator Galileo's Paradox Calculator illustrates that up to any number there are far fewer perfect squares than integers, even though the two infinite sets can be matched one-to-one. Enter an upper limit. Hilbert's Hotel Calculator Hilbert's Hotel Calculator illustrates how a fully booked hotel with infinitely many rooms can still fit more guests by shifting everyone along. Enter how many new guests arrive.

Convolution Calculator The Convolution Calculator computes the discrete convolution of two number sequences, as used in signal processing and polynomial multiplication. Enter both sequences separated by commas.

Exponent Calculator Exponent Calculator is a mathematics calculator that helps you calculate exponent values from your input data. The formula used is: Result = Base^Exponent. Fractional exponent: b^(1/n) = nth root of b. Negative exponent: b^(−n) = 1 / b^n.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Root Calculator Root Calculator is a mathematics calculator that helps you calculate root values from your input data. The formula used is: ⁿ√x = x^(1/n). For square root: √x = x^0.5. For cube root: ∛x = x^(1/3). Negative numbers: ⁿ√(−x) = −ⁿ√x (only for odd n).. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Scientific Calculator Scientific Calculator is a mathematics calculator that helps you calculate scientific values from your input data. The formula used is: Expressions are tokenised and converted to Reverse Polish Notation with the shunting-yard algorithm, then evaluated. No code is executed — only whitelisted operators and functions are allowed.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Gamma Function Calculator The Gamma Function Calculator evaluates Γ(x), the continuous extension of the factorial, using the Lanczos approximation. Enter a value of x.

Harmonic Number Calculator Calculate the Nth harmonic number. H(n) = 1 + 1/2 + 1/3 + ... + 1/n.

Lagrange Error Bound Calculator The Lagrange Error Bound Calculator estimates the maximum error of a Taylor polynomial approximation. Enter the bound on the (n+1)th derivative, the point x, the center a, and the degree n.

LCM & GCF Calculator LCM & GCF Calculator is a mathematics calculator that helps you calculate lcm & gcf values from your input data. The formula used is: GCF: Euclidean algorithm — repeatedly replace the larger number with the remainder until 0. LCM = (a × b) / GCF.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Permutation & Combination Calculator Permutation & Combination Calculator is a mathematics calculator that helps you calculate permutation & combination values from your input data. The formula used is: nPr = n! / (n−r)! (order matters). nCr = n! / (r! × (n−r)!) (order does not matter). nPr = nCr × r!. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Log Calculator Log Calculator is a mathematics calculator that helps you calculate log values from your input data. The formula used is: log_b(x) = ln(x) / ln(b). Natural log: ln(x) = log_e(x). Change of base: log_b(x) = log_10(x) / log_10(b).. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Logical NOR Gate NOR (NOT-OR) logic gate. Output 1 only if both inputs are 0. Truth table: 0,0→1 | 0,1→0 | 1,0→0 | 1,1→0. Used in digital circuits. Logical OR Gate OR logic gate. Output 1 if any input is 1, else 0. Truth table: 0,0→0 | 0,1→1 | 1,0→1 | 1,1→1. Fundamental to digital circuits.

Miracle Odds Calculator (Littlewood's Law) The Miracle Odds Calculator applies Littlewood's Law idea: given the odds of a rare event and how many chances you get per day, it estimates how long until it happens. Enter the odds and daily chances. Powerball Lottery Odds Powerball probability: pick 5 from 69 white balls + 1 from 26 red (Powerball).

Multiplicative Inverse Find multiplicative inverse (reciprocal) of a number. Formula: Inverse = 1 / n. Example: 1/2 = 0.5, 1/4 = 0.25. Property: n × (1/n) = 1

Multiplicative Inverse mod n Find multiplicative inverse modulo n. Formula: Find x such that (a × x) ≡ 1 (mod n). Used in cryptography. Requires GCD(a, n) = 1.

Ones Complement Find ones complement (bit flip) of a binary number. Flips all bits: 0→1, 1→0. For 8-bit: flip each bit independently. Example: 00001111 → 11110000

Order of Magnitude Calculate order of magnitude of a number. Formula: Order = floor(log₁₀(n)). Shows approximate scale: 100 is 10², 1000 is 10³. Used in scientific approximations.

Partial Products Multiplication Demonstrate partial products multiplication method. Shows how (a×10+b)×(c×10+d) breaks into parts. Educational math technique.

Percentage Decrease Calculator Percentage Decrease Calculator computes the percent decline from initial to final value. Formula: % Decrease = ((Initial − Final) ÷ Initial) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Percentage Difference Calculator Percentage Difference Calculator finds symmetric percent difference between two values. Formula: % Diff = (|A − B| ÷ ((A + B) ÷ 2)) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units. Percentage Increase Calculator Percentage Increase Calculator computes the percent growth from initial to final value. Formula: % Increase = ((Final − Initial) ÷ Initial) × 100. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Percentage Of Percentage Calculator Percentage Of Percentage Calculator finds what percentage one percentage is of another. Formula: Result % = (First % × Second %) ÷ 100. Useful for nested discounts, compound probabilities, and layered multipliers. Percentage Point Calculator Percentage Point Calculator computes the difference between two percentages. Formula: Percentage Point Change = Final % − Initial %. Useful for tracking changes in rates, election results, market share, and survey responses.

Place Value Calculator Place Value Calculator breaks a number into its positional components (ones, tens, hundreds, etc). Each digit's value = digit × position value.

Polar to Cartesian Conversion Convert polar coordinates (r, θ) to Cartesian (x, y). Formulas: x = r·cos(θ), y = r·sin(θ). Used in navigation, physics, engineering. Polar to Rectangular Conversion Convert polar coordinates (r, θ) to rectangular (x, y). Formulas: x = r·cos(θ), y = r·sin(θ). Same as Cartesian; used interchangeably.

Power Set Calculator Power set: number of subsets of a set with n elements = 2^n.

Prisoners' Dilemma Payoff Analyze Prisoners' Dilemma payoff matrix. Shows outcomes for Cooperate vs Defect strategies. Educational game theory reference.

Queueing Theory (M/M/1) Calculate queue metrics. Formula: L = λ/(μ-λ); Wq = λ/[μ(μ-λ)]. M/M/1 queue analysis. Educational reference.

Recipe Scaling Calculator Recipe Scaling Calculator is a mathematics calculator that helps you calculate recipe scaling values from your input data. The formula used is: Scale Factor = Desired Servings / Original Servings\nScaled Amount = Original Amount × Scale Factor. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

Reverse Polish Notation Calculator Reverse Polish Notation (RPN) evaluates postfix expressions. Format: '3 4 +' = 7; '5 3 -' = 2; '2 3 *' = 6.

Standard Deviation Calculator Standard Deviation Calculator is a mathematics calculator that helps you calculate statistical measures from a data set. The formula used is: Population σ = √(Σ(x−μ)² / N). Sample s = √(Σ(x−x̄)² / (N−1)). The sample formula uses N−1 (Bessel's correction) for an unbiased estimate.. Ensure all inputs share the same unit system (e.g. all metres or all feet) unless the formula converts between units.

2×2 Matrix Determinant Calculate the determinant of a 2×2 matrix. 2×2 Matrix Multiplication 2×2 Matrix Multiplication is a fast, free math calculator. Enter A[1,1], A[1,2] and A[2,1] to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Catenary Curve Catenary Curve — mathematical calculation tool. Ceiling Function Calculator Calculate the ceiling function ⌈x⌉ — the smallest integer greater than or equal to x. Chinese Remainder Chinese Remainder — mathematical calculation tool. Clock Angle Calculator Calculate the angle between the hour and minute hands of a clock at any given time. Coin Rotation Paradox Calculator Calculate how many times a rolling coin rotates as it moves around another coin of any radius — solving the famous coin rotation paradox. Collatz Conjecture Calculator Explore the Collatz conjecture: apply n → n/2 (if even) or n → 3n+1 (if odd) and count steps to reach 1. Common Denominator Common Denominator — mathematical calculation tool. Common Factor Common Factor — mathematical calculation tool. Common Multiple Common Multiple — mathematical calculation tool. Compatible Numbers Compatible Numbers — mathematical calculation tool. Complementary Angles Find the complement and supplement of an angle. Cos 1 Cos 1 is a fast, free math calculator. Enter X Value to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Cos 2 Theta Cos 2 Theta — mathematical calculation tool. Cos Inverse Cos Inverse — mathematical calculation tool. Cosecant Calculator Calculate the cosecant (csc) of an angle. Cosecant is the reciprocal of sine: csc(θ) = 1/sin(θ). Cosine Similarity Calculate cosine similarity between two 3D vectors. Cotangent Calculator Cotangent is a fast, free math calculator. Enter Angle (degrees) to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Coterminal Angle Calculator Coterminal Angle is a fast, free math calculator. Enter Angle (degrees) to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Cross Product Calculator Calculate the cross product of two 3D vectors. Cube (Volume, Area, Diagonal) Calculate volume, surface area, and diagonal of a cube. Cube Root Calculator Calculate the cube root of a number. The cube root of n is the value that, when multiplied by itself three times, equals n. Written as ∛n or n^(1/3). Cuboid Calculator Calculate volume, surface area, and diagonal of a cuboid. Cycloid Cycloid — mathematical calculation tool. Cylinder Diameter Cylinder Diameter — mathematical calculation tool. Decimal to Fraction Converter Convert a fraction (numerator/denominator) to decimal and simplified fraction form. Diameter To Radius Diameter To Radius — mathematical calculation tool. Digital Root Calculator Digital Root is a fast, free math calculator. Enter Number to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Discriminant Calculator Calculate the discriminant of a quadratic equation. Divisibility Test Divisibility Test — mathematical calculation tool. Double Angle Formula Calculate double angle using double angle identities. Endpoint Calculator Find an endpoint given a midpoint and the other endpoint. Error Function Error Function — mathematical calculation tool. Exponential Function Exponential Function is a fast, free math calculator. Enter Initial Value (a), Growth Rate (b) and x to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Factoring Trinomials Factoring Trinomials — mathematical calculation tool. Fermats Little Theorem Fermats Little Theorem — mathematical calculation tool. Fifth Root Calculator Fifth Root is a fast, free math calculator. Enter Number to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Floor & Ceiling Functions Calculate floor and ceiling of a real number. Foci Of Ellipse Find the foci of an ellipse from its semi-major and semi-minor axes. Calculate focal distance (c) and eccentricity. The foci are the two fixed points that define an ellipse: any point on the ellipse has a constant sum of distances to the two foci. Foil FOIL method solver for binomial multiplication. Multiply two binomials (a+b)(c+d) step-by-step: First, Outer, Inner, Last products. See all four terms and final quadratic result. Fourth Root Calculator Calculate the fourth root of any non-negative number. Fourth root is the inverse of raising a number to the 4th power: ⁴√n = n^0.25. Example: ⁴√81 = 3 (because 3⁴ = 81). Fraction to Decimal Convert Fraction to Decimal instantly with MyKalculators' free math calculator. Enter any value in Fraction to get the exact equivalent in Decimal, with the conversion formula, worked example and quick reference points shown below. Fractional Exponent Calculate fractional exponents: a^(m/n) = ⁿ√(a^m). For example, 8^(2/3) = ³√(8²) = ³√64 = 4. Fractional exponents represent roots and are essential in algebra and calculus. Fundamental Counting Principle Fundamental Counting Principle — mathematical calculation tool. GCD Calculator Greatest common divisor of two integers. Gcf And Lcm Gcf And Lcm — mathematical calculation tool. GCF Calculator (Greatest Common Factor) Find the Greatest Common Factor (GCF) of two numbers using the Euclidean algorithm. Generic Rectangle Generic Rectangle — mathematical calculation tool. Golden Rectangle Calculate golden ratio and golden rectangle dimensions. Greater Less Greater Less — mathematical calculation tool. Greatest Common Denominator Greatest Common Denominator — mathematical calculation tool. Greatest Common Divisor Greatest Common Divisor — mathematical calculation tool. Greatest Common Factor Greatest Common Factor — mathematical calculation tool. Hadamard Product Hadamard Product — mathematical calculation tool. Half Angle Half Angle — mathematical calculation tool. Heron's Formula Calculator Calculate the area of a triangle from its three side lengths using Heron's formula. Hexagonal Pyramid Hexagonal Pyramid — mathematical calculation tool. Hyperbolic Cosine (cosh) Hyperbolic Cosine (cosh) is a fast, free math calculator. Enter x to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Hyperbolic Functions Hyperbolic Functions — mathematical calculation tool. Hypotenuse Calculator Calculate the hypotenuse of a right triangle. I Number I Number — mathematical calculation tool. Improper Fraction To Mixed Number Improper Fraction To Mixed Number — mathematical calculation tool. Inscribed Angle Theorem Calculate the inscribed angle from the central angle. Integer Integer — mathematical calculation tool. Intersection Of Two Lines Intersection Of Two Lines — mathematical calculation tool. Interval Notation Interval Notation — mathematical calculation tool. Inverse Modulo Inverse Modulo — mathematical calculation tool. Inverse Variation Inverse Variation — mathematical calculation tool. Lcd Lcd is a fast, free math calculator. Enter First Denominator and Second Denominator to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. LCM Calculator (Least Common Multiple) Find the Least Common Multiple of two numbers. Least Common Denominator Least Common Denominator — mathematical calculation tool. Least Common Factor Least Common Factor — mathematical calculation tool. Least Common Multiple Least Common Multiple — mathematical calculation tool. Line from Two Points Find the equation of a line through two points. Linear Independence Linear Independence — mathematical calculation tool. Linear Interpolation Interpolate a value between two known data points. Luhn Algorithm (Credit Card Validator) Validate a number using the Luhn algorithm. Matrix × Scalar Matrix × Scalar is a fast, free math calculator. Enter Scalar, A[1,1] and A[1,2] to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Matrix Trace Calculate the trace (sum of diagonal) of a 2×2 matrix. Matrix Transpose (2×2) Matrix Transpose (2×2) is a fast, free math calculator. Enter A[1,1], A[1,2] and A[2,1] to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Midpoint Calculator Find the midpoint between two points in 2D or 3D space. Minutes To Decimals Degrees Minutes To Decimals Degrees — mathematical calculation tool. Modulo (Negative Numbers) Calculate modulo for negative numbers (mathematical definition). Multiplication Calculator Multiply numbers with step-by-step result. Parabola Calculator Find key features of a parabola y = ax² + bx + c. Pi (π) Calculator Calculate circumference and area using Pi. Point-Slope Form Convert point-slope form to slope-intercept form. Polygon Interior Angles Calculate interior angle sum and each angle of a regular polygon. Proportion Calculator Solve a proportion a/b = c/d for the missing value. Pythagorean Triples Generator Generate Pythagorean triples using Euclid's formula. Quotient and Remainder Divide two integers and find quotient and remainder. Reciprocal Calculator Reciprocal is a fast, free math calculator. Enter Number to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Rectangle Calculator Calculate area, perimeter, and diagonal of a rectangle. Rectangle Diagonal Angle Rectangle Diagonal Angle — mathematical calculation tool. Rectangular Prism Calculator Calculate volume and surface area of a rectangular prism. Rectangular To Polar Rectangular To Polar — mathematical calculation tool. Regular Decagon Calculator Calculate area and perimeter of a regular decagon. Regular Dodecagon Calculator Calculate area of a regular 12-sided polygon. Regular Heptagon Calculator Calculate area and perimeter of a regular heptagon. Regular Polygon Area Regular Polygon Area is a fast, free math calculator. Enter Number of Sides and Side Length to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Relatively Prime Relatively Prime — mathematical calculation tool. Remainder Calculator Calculate the remainder of integer division. Right Cylinder Right Cylinder — mathematical calculation tool. Right Rectangular Pyramid Right Rectangular Pyramid — mathematical calculation tool. Right Trapezoid Right Trapezoid — mathematical calculation tool. Rise Over Run (Slope) Rise Over Run (Slope) is a fast, free math calculator. Enter x₁, y₁ and x₂ to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser. Tree Height from Shadow Calculate tree height using shadow length and angle (similar triangles method).