Use this forestry calculation to summarize a measured tree, plot, canopy, fuel, biomass, carbon, growth, density, or wood-volume quantity under a stated inventory convention.

Observed Basal Area Per Hectare (m2/ha)

Required number input.

Target Basal Area Per Hectare (m2/ha)

Required number input.

Measured stand basal area as a percentage of a user-supplied target basal area. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Stocking Percent (percent)

The resulting stocking percent returned as a number.

• Density, spacing, stocking, and plot-expansion metrics depend on species or stand model, plot area, edge correction, diameter threshold, spatial pattern, and reference maximum. They are not interchangeable measures of competition.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Use locally validated equations and inventory protocols, retain species and measurement metadata, aggregate with appropriate plot expansion and sampling weights, and report uncertainty with stand-level results.

• Basal Area Increment Percentage

  Percentage change in stand basal area from start to end inventory.

• Basal Area Growth Annual

  Average annual stand basal-area change in square metres per hectare.

• Form Factor

  Tree stem form factor: measured stem volume divided by basal area times tree height.