Alcohol Calories Calculator
The Alcohol Calories Calculator estimates how many calories come from the pure alcohol in a drink. Alcohol provides about 7 kcal per gram: grams = volume × ABV% × 0.789, then calories = grams × 7.
- Counts alcohol calories only, not sugars or other ingredients.
Formula
Alcohol (g) = volume × ABV% × 0.789; kcal = grams × 7
- First find the grams of pure alcohol: volume (mL) × ABV as a decimal × 0.789 (the density of ethanol).
- Then multiply grams of alcohol by 7 kcal/g to get the calories from alcohol.
- This counts only the alcohol calories; sugars, carbs and other ingredients (e.g. in cocktails or sweet wines) add more.
- Use it to compare drinks — stronger and larger drinks contribute more calories.
Example Calculation
Inputs
- Drink Volume: 330 ml
- Alcohol (ABV): 5 %
A 330 mL beer at 5% ABV contains 330 × 0.05 × 0.789 ≈ 13 g of alcohol, giving about 13 × 7 ≈ 91 kcal from alcohol alone.
Frequently asked questions
How many calories are in alcohol?
Pure alcohol provides about 7 kcal per gram — nearly as much as fat — which is why alcoholic drinks can be calorie-dense.
Does this include sugar or mixers?
No. It counts only the calories from alcohol; sweet wines, beers and cocktail mixers add extra calories on top.
Why multiply by 0.789?
That is the density of ethanol (g/mL), used to convert the volume of pure alcohol into grams.
How do I find a drink's alcohol volume?
Multiply the drink's total volume by its ABV percentage — for example, 330 mL at 5% is 16.5 mL of pure alcohol.
Do alcohol calories cause weight gain?
They can. Alcohol calories add to your daily total and the body tends to burn alcohol first, slowing fat metabolism.
Related calculators
Alcohol Units Calculator The Alcohol Units Calculator converts any drink into UK alcohol units and US standard drinks. UK units = volume (mL) × ABV ÷ 1000, and a US standard drink is 14 g of pure alcohol. Blood Alcohol Content (BAC) Estimator Estimate your blood alcohol content (BAC) with the Widmark formula. Enter how many grams of pure alcohol you drank, your body weight, your sex, and how long ago you started, and this calculator returns a rough BAC percentage. Calorie Calculator Find out how many calories you need each day to lose, maintain, or gain weight. This calculator estimates your BMR with the Mifflin-St Jeor equation, multiplies by your activity level to get your maintenance calories (TDEE), then adjusts for your goal so you get a daily calorie target you can actually eat to.