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Tree Benefits Calculator

Estimate total annual benefits for multiple trees by scaling your entered per-tree-year model outputs by tree count.

Content updated October 7, 2026 · Details

Published

Content updated

Recorded calculation check · Verification scope

Enter values below

Inputs ↓
—

Fill in the highlighted fields to see your result.

kg/tree-year
m³/tree-year

A transparent worksheet using measured values and explicit user-entered scenario factors.

Results update as you type.

Result links include your inputs in the URL. Anyone with the link can read them; avoid sharing sensitive values.

Compare scenarios

Save a result, change your inputs, then compare. Up to three saved scenarios for this visit.

Arithmetic scenario only. Verify measurements, product data, and source applicability for your use.

Worked example

trees: 3 · co2Factor: 20 · stormwaterFactor: 2 · calibration: i-Tree Eco v6 (2024), Seattle, Douglas-fir · provenance: i-Tree Eco v6 (2024), Seattle, WA, Douglas-fir · uncertainty: ±15% scenario range

Result: 60.0 kg/year

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Scale user-entered model outputs by tree count.

Inputs and method

Each scenario value = tree count × the entered per-tree-year model output.

All empirical factors, rates, percentages, clearances, product yields, and model values shown as inputs are scenario values supplied by you. Their source or measurement basis appears beside the inputs and result. Units remain visible, calculations use unrounded values, and rounding occurs only for display or a whole-package ceiling.

Interpreting the result

Record model, version, location, species, and calibration. No generic coefficient, oxygen, money, energy, or air-quality claim is supplied. For the measurement side of trees, the Basal Area Calculator converts DBH into stand-density units; for organic-waste and tree-lifecycle scenarios, see the Composting Impact Calculator and Zero Waste Christmas Tree Calculator.

Treat scenario ranges as sensitivity ranges, not confidence intervals. Check the factor’s version, geography, population or product, system boundary, and date before using the result. A numerical result does not establish code compliance, certification, safety, forecast accuracy, or model validity.

Validation and rounding

Blank required factors, invalid numbers, prohibited negatives, impossible relationships, and unsupported modes trigger a validation message. Results are rounded as stated; package quantities round up only after waste is applied.

Worked example

For 3 trees, entered model outputs of 20 kg/tree-year and 2 m³/tree-year produce 60.0 kg/year and 6.0 m³/year.

Frequently asked question

Are these guaranteed environmental benefits? No. They are entered model outputs multiplied by tree count.

Keep the per-tree model context

Save tree count, supplied CO₂ and stormwater factors, and the model’s location, species, and calibration information. Compare another tree count with those factors fixed before examining another model scenario. The outputs inherit the entered model assumptions rather than becoming measured benefits merely because the tree count is known.

Sources

  • USDA Forest Service, “Urban and Community Forestry” — current web edition; program overview, accessed 2026-07-09. Route-specific boundary: context and terminology only; it does not supply an entered coefficient, uncertainty, recommendation, or approval.

  • USDA Forest Service, “TreeSearch publication 29102” — cataloged publication; abstract and model-scope passages, accessed 2026-07-09. Route-specific boundary: context and terminology only; it does not supply an entered coefficient, uncertainty, recommendation, or approval.

  • i-Tree, “Tools” — current web edition; model and tool descriptions, accessed 2026-07-09. Route-specific boundary: context and terminology only; it does not supply an entered coefficient, uncertainty, recommendation, or approval.

  • About — The i-Tree project’s own description identifies i-Tree as a peer-reviewed software suite from the USDA Forest Service, supporting the page’s requirement that per-tree values come from a named, location-calibrated i-Tree or equivalent model.

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Frequently asked questions

What does the tree benefits calculator compute?

Each scenario value is the tree count times the per-tree-year model output you enter, so the totals are scaled annual benefits across multiple trees. No generic oxygen, monetary, carbon, or energy coefficient is supplied.

Where should the per-tree values come from?

They should come from a named, location-calibrated i-Tree or equivalent model, and you should record the model, version, location, species, and calibration. The calculator scales those outputs by tree count only.

What does the worked example show?

For 3 trees with entered model outputs of 20 kg per tree-year and 2 cubic meters per tree-year, the totals are 60.0 kg per year and 6.0 cubic meters per year.

Sources

  • Source document (www.itreetools.org)

    primary · Aug 12, 2026

    Supports: The i-Tree project's own description identifies i-Tree as a peer-reviewed software suite from the USDA Forest Service, supporting the page's requirement that per-tree values come from a named, location-calibrated i-Tree or equivalent model.

  • i-Tree, “Tools”

    primary · Aug 12, 2026

    Supports: The official tool index lists the individual i-Tree applications (for example MyTree, i-Tree Design, and Eco), supporting the page's instruction to record the specific model and version behind each entered output.

  • USDA Forest Service, “Urban and Community Forestry”

    primary · Aug 12, 2026

    Supports: The USDA Forest Service's Urban and Community Forestry program page provides the agency context for urban-tree benefit assessment; it does not supply any coefficient the calculator uses.

  • TreeSearch publication 29102

    secondary · Aug 18, 2026

    Supports: cataloged publication; abstract and model-scope passages, accessed 2026-07-09. Route-specific boundary: context and terminology only; it does not supply an entered coefficient, uncertainty, recommendation, or approval

    — USDA Forest Service

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Tree Benefits Calculator updated at

Recorded calculation check

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