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Category Gardening
Tree Parameters
Diameter @ 1.3m
Override for specific local variants
Estimation Results
Biomass 0 kg
Carbon 0 kg
CO2 Offset 0 kg
Projected Carbon Sequestration (50 Years)
Forest Inventory
Total CO2: 0.00 t
Species DBH (cm) Height (m) Biomass (kg) CO2e (kg) Action
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About

This tool estimates the Above-Ground Biomass (AGB), carbon storage, and CO2 sequestration potential of individual trees or entire forest plots. Accurate biomass estimation is critical for carbon credit auditing, environmental impact assessments, and sustainable forestry management.

The calculator utilizes volumetric models based on wood density and geometric dimensions, as well as species-specific allometric scaling factors where available. It accounts for root systems via shoot-to-root ratios and provides a timeline projection for future carbon capture.

forestry carbon-calculator biomass co2-offset ecology

Formulas

The primary estimation relies on a volumetric approach modified by wood density:

M 0.5 × ρ × π × D24 × H

Where:

  • M = Biomass (kg)
  • ρ = Wood Density (kg/m3)
  • D = Diameter (m)
  • H = Height (m)

Total Carbon and CO2 equivalent are derived using IPCC constants:

Cstored = M × 0.47
CO2eq = Cstored × 4412

Reference Data

Tree SpeciesAvg Density (kg/m3)Growth RateHardness
Oak (Quercus robur)710SlowHard
Pine (Pinus sylvestris)510FastSoft
Birch (Betula pendula)650MediumHard
Maple (Acer saccharum)740SlowHard
Spruce (Picea abies)450FastSoft
Beech (Fagus sylvatica)720MediumHard
Cedar (Cedrus libani)560MediumSoft
Douglas Fir (Pseudotsuga)530FastSoft
Eucalyptus (Globulus)900Very FastHard
Teak (Tectona grandis)660MediumHard
Mahogany (Swietenia)600SlowHard
Willow (Salix)420FastSoft
Ash (Fraxinus)670MediumHard
Poplar (Populus)450Very FastSoft
Walnut (Juglans)640SlowHard
Cherry (Prunus avium)600MediumHard
Elm (Ulmus)560MediumHard
Larch (Larix)590MediumSoft
Fir (Abies)410MediumSoft
Hemlock (Tsuga)470SlowSoft

Frequently Asked Questions

Wood density (ρ) varies significantly between species (e.g., Balsa ~160 kg/m³ vs. Oak ~710 kg/m³). A purely geometric calculation (Volume) without Density would treat all trees as having the same mass per cubic meter, leading to massive errors in carbon estimation.
DBH stands for "Diameter at Breast Height". It is the standard method for measuring tree diameter, taken at 1.3 meters (4.3 feet) above the ground. This avoids the irregularities often found at the very base of the trunk.
By default, equations calculate Above-Ground Biomass (AGB). If you check "Include Roots", the tool applies a Shoot-to-Root ratio (typically multiplying AGB by 1.26) to account for the carbon stored in the underground root system.
These are estimates based on generalized allometric models and average species densities. Real-world biomass varies due to moisture content, local climate, tree health, and soil conditions. For certified carbon credits, field sampling and local equations are required.