Tree Age Calculator
Tree Age Calculator is a biology calculator that helps you estimate a living tree's age from its trunk circumference and species growth factor. The formula used is: Diameter = Circumference ÷ π; Age ≈ Diameter (inches) × Growth factor. Measure the trunk circumference at about 1.4 m (chest height) in centimetres and choose a species growth factor.
Formula
Diameter = Circumference ÷ π; Age ≈ Diameter (inches) × Growth factor
- Formula: Diameter = Circumference ÷ π; Age ≈ Diameter (inches) × Growth factor
- Measure the trunk circumference at about 1.4 m (chest height) in centimetres and choose a species growth factor.
- Based on the ISA growth-factor method; an estimate that varies with species, soil and climate.
Example Calculation
Enter your values and the calculator applies the formula (Diameter = Circumference ÷ π; Age ≈ Diameter (inches) × Growth factor) and shows the results below. Change any input to update the result instantly.
Frequently asked questions
What is the Tree Age?
The Tree Age Calculator helps you estimate a living tree's age from its trunk circumference and species growth factor. Measure the trunk circumference at about 1.4 m (chest height) in centimetres and choose a species growth factor.
When should I use this calculator?
Use this calculator whenever you need a quick, accurate result for estimate a living tree's age from its trunk circumference and species growth factor.
What should I enter?
Measure the trunk circumference at about 1.4 m (chest height) in centimetres and choose a species growth factor.
How accurate are the results?
Results are estimates based on the stated formula and assumptions. Verify against your own figures or an authoritative source before acting on them.
How can I verify the calculation manually?
Apply the formula (Diameter = Circumference ÷ π; Age ≈ Diameter (inches) × Growth factor) and work through the numbers step by step. If your result differs, re-check units and rounding first.