What is basal area?
Basal area is the cross-sectional area of a tree's trunk at DBH (4.5 ft). In forestry, it's expressed as square feet per acre and is a key metric for forest density, timber volume, and management planning.
BA = 0.005454 × DBH²
Last updated: April 13, 2026
Basal Area Calculator
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inches
For total stand basal area.
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