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.

Tree Height Meters (m)

Required number input.

Dbh Centimeters (cm)

Required number input.

Dimensionless tree slenderness from height in metres divided by DBH converted from centimetres to metres. 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]

Height To Diameter Ratio

The resulting height to diameter ratio returned as a number.

• Inventory summaries depend on breast-height definition, inclusion threshold, plot design, bark treatment, slope correction, damaged stems, measurement error, and expansion weights. Arithmetic and basal-area-weighted means answer different questions.
• 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.

• Arithmetic Mean Diameter

  Arithmetic mean DBH in centimetres from summed diameters and measured tree count.

• Dbh From Circumference

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