How accurate are these estimates?

The estimates are based on average benefit factors derived from the USDA i-Tree methodology and published forestry research. Actual values vary by exact location, local climate, soil conditions, and tree health. These figures are best used for planning and education rather than precise accounting.

DBH stands for Diameter at Breast Height — the trunk diameter measured at 4.5 feet (1.37 m) above the ground. It is the standard forestry measurement used to assess tree size and maturity. You can measure it with a tape measure wrapped around the trunk (circumference divided by 3.14159).

Which species group should I choose?

Choose the group that most closely matches your tree type. Deciduous hardwoods include oaks, maples, elms, and similar broad-leaved trees. Evergreen conifers include pines, spruces, and firs. Small ornamentals cover flowering trees like dogwoods and redbuds. Large conifers cover Douglas fir, sequoias, and similar tall evergreens.

How is the dollar value calculated?

Dollar values use published average benefit prices: CO2 at the US social cost of carbon (~$51/tonne), energy at average US residential electricity and natural gas rates, stormwater at typical municipal avoided infrastructure costs, and air quality at EPA willingness-to-pay estimates for pollutant removal.

Does tree age affect the calculation?

Age is indirectly captured through DBH — larger trees generally have greater DBH. A mature oak at 20-inch DBH will show significantly higher annual benefits than a young tree at 4-inch DBH, accurately reflecting that larger canopies intercept more rainfall, sequester more carbon, and shade more roof area.

Tree Benefit Estimator

Name: Tree Benefit Estimator
Availability: InStock
Author: Nham Vu

Select a tree species and enter its size to instantly estimate annual CO2 sequestration, energy savings, stormwater interception, and air quality improvement.

Tree Details

Species Group

Trunk Diameter at Breast Height (DBH) (inches)

Measure trunk circumference at 4.5 ft height, divide by 3.14

Climate Zone

Setting

Enter tree details and click Estimate Benefits

Results include annual CO2, energy, stormwater, and air quality values

Total Annual Benefit

Over 20 Years

CO2 Sequestration

—

$—

Annual CO2 removed from atmosphere

Energy Savings

—

$—

Cooling & heating cost reduction

Stormwater Intercepted

—

$—

Runoff avoided per year

Air Quality

—

$—

O3, PM2.5, NO2 & SO2 removed

Methodology: Estimates adapted from USDA Forest Service i-Tree research. Benefit factors scale with DBH-based canopy area. Dollar values use US social cost of carbon ($51/tonne CO2), average residential energy rates ($0.15/kWh, $1.10/therm), municipal stormwater avoided cost ($0.008/gallon), and EPA air quality willingness-to-pay values. Results are estimates for planning purposes only.

Summary

Select a tree species and enter its size to instantly estimate annual CO2 sequestration, energy savings, stormwater interception, and air quality improvement.

How it works

Select the tree species group that best matches your tree.
Enter the tree diameter at breast height (DBH in inches) or canopy spread (in feet).
Choose the climate zone to refine energy and stormwater estimates.
Click "Estimate Benefits" to calculate all four benefit categories.
Review the annual values in both environmental units and estimated dollar amounts.
Use the results to support tree planting decisions, grant applications, or property valuations.

Use cases

Justify urban tree planting programs to city planners and stakeholders.
Calculate the environmental value of trees on a residential property.
Support grant applications for community forestry projects.
Estimate carbon offset value for corporate sustainability reporting.
Compare benefits of different species before planting.
Educate students and residents about ecosystem services trees provide.
Assess stormwater management credits for green infrastructure projects.
Determine energy savings from strategically placed shade trees.

Frequently Asked Questions

Last updated: 2026-07-01 · Reviewed by Nham Vu