Trees Forestry calculators
7 calculators Basal Area Calculator Calculate basal area for one tree or an entire stand. Enter DBH in metric or imperial, get m2, ft2, m2/ha and ft2/acre instantly with step-by-step working.
Open Tree Age Calculator Estimate a tree's age from its trunk circumference or diameter and species. Uses ISA growth factors for 39 species, with metric and imperial unit support.
Open Tree Diameter Calculator (DBH) Calculate tree diameter at breast height (DBH) from circumference, estimate tree age by species, basal area, and diameter under bark. Metric and imperial units.
Open Tree Height Calculator Calculate tree height using the angle (trigonometry), shadow, or stick method, in metric or imperial, with step-by-step working and a species reference.
Open Tree Leaves Calculator Estimate how many leaves are on a tree using the crown-projection and LAI method. Choose a species, measure the crown, and get a leaf count and bag estimate.
Open Tree Spacing Calculator Calculate how many trees fit in your area with rectangular or triangular spacing. Get trees per acre, total count, and spacing recommendations for 35+ species.
Open Tree Value Calculator Estimate tree value using the CTLA Trunk Formula for ornamental appraisal or Doyle board-foot scaling for timber. Enter diameter, species, height, and condition.
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