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Tree Diameter Calculator
Convert tree circumference to Diameter at Breast Height (DBH)
Formula: $\text{DBH} = \text{Circumference} / \pi$. Standard tree measurements are taken at breast height, which is defined as 4.5 feet (1.37 meters) above ground level.
Trunk Measurement & Units
Calculation Results
⚠️ Ensure the circumference measurement is taken precisely at 4.5 feet (1.37 m) up the trunk on the uphill side for sloped terrain. Irregular bark thickness or swollen trunk bases can slightly skew diameter calculations.