Tree & Forestry Calculators
Forestry calculators — tree age, height, diameter, basal area, spacing, leaf count, and standing timber value using standard forestry formulas.
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All tree & forestry calculators
Basal Area Calculator
Calculate tree basal area in square feet from diameter at breast height (DBH).
Tree Leaves Calculator
Estimate the number of leaves and total leaf area from tree species and size.
Tree Age Calculator
Estimate a tree's age from species, DBH, and growth rate without cutting it.
Tree Diameter Calculator
Calculate diameter at breast height (DBH) from tree circumference.
Tree Height Calculator
Calculate tree height from distance and angle of elevation using trigonometry.
Tree Spacing Calculator
Calculate trees per acre from desired spacing for planting and forestry.
Tree Value Calculator
Estimate a standing tree's timber value from species, DBH, and market price.
Frequently asked questions
A:Estimate age = (DBH ÷ 2) ÷ annual growth rate. For an exact age, count annual rings or core the trunk.
A:Height = distance × tan(angle to top) + eye height, using a clinometer.
A:The trunk cross-section at breast height: BA = DBH² × 0.005454 ft² per tree.