Individual basal area m² = π × (diameter cm / 200)². Sum tree areas; plot-scaled m²/ha = sum × 10,000 / plot m².
How to use Basal Area Calculator
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Calculation method
Individual basal area m² = π × (diameter cm / 200)². Sum tree areas; plot-scaled m²/ha = sum × 10,000 / plot m².
Read the two focused guides
Continue with Basal Area from a Plot: Sum Cross-Sections Before Expanding to a Hectare for the other part of this measurement question.
Continue with DBH Records: Consistent Height and Stem Rules Matter in Stand Comparisons for the other part of this measurement question.
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