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Trees & forestry calculators
Measure the trees around you. Choose a tool below to calculate a result and understand the science behind it.
- Basal Area Calculator
Calculate trunk cross-sectional area and stand basal area from one or many tree diameters.
- Tree Age Calculator
Estimate tree age from trunk diameter or circumference and a species growth factor.
- Tree Diameter Calculator
Convert trunk circumferences to diameters, including a multi-stem equivalent and an optional bark correction.
- Tree Height Calculator
Estimate height with signed sighting angles and distance, or by comparing shadows.
More to explore
Curiosity rarely stays in one category. Browse our complete collection or use the search at the top of the page to find a specific calculation.