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.

Dbh Centimeters (cm)

Required number input.

Total Height Meters (m)

Required number input.

Measurement Height Meters (m)

Required number input.

Linear stem-taper estimate above breast height, from measured DBH at 1.3 m to zero at total height. 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]

Estimated Diameter Centimeters (cm)

The resulting estimated diameter centimeters returned as a number.

• Tree-volume estimates depend on diameter locations, length, bark convention, taper, form, defects, species, moisture, and merchantability rules. Huber, Smalian, Newton, and simple form-factor methods can differ for tapered or irregular logs.
• 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 Single Tree

  Tree stem cross-sectional basal area at breast height in square metres from DBH in centimetres.

• Dbh From Circumference

  Diameter at breast height in centimetres from stem circumference at the same measurement height.

• Biomass Expansion Factor

  Ratio of measured total aboveground dry biomass to inventoried stem dry biomass.