Business Carbon Footprint Estimator
Estimate Scope 1, 2, and 3 emissions from your utility bills, fleet, travel, and spend, plus the levers that cut the most.
Example scenario—not a forecast or verified benchmark. Enable JavaScript to edit inputs, view charts, save locally and export your analysis.
Example inputs
- Annual revenue
- 5,000,000
- Employees
- 30
- Natural gas used per year
- 6,000
- Fleet gasoline per year
- 8,000
- Fleet / equipment diesel per year
- 2,000
- Electricity used per year
- 150,000
- Share of electricity from renewables (green tariff, solar, RECs)
- 0
- Business air travel per year
- 120,000
- Annual spend on purchased goods and services
- 1,500,000
- Grid electricity factor
- 0.37
- Natural gas factor
- 5.3
- Gasoline factor
- 8.9
- Diesel factor
- 10.2
- Air travel factor
- 0.2
- Spend-based factor
- 0.25
Example results
Estimated footprint: 652 tCO2e a year (Scope 1: 123, Scope 2: 56, Scope 3: 473), or 130.3 t per $1M of revenue.
- Total footprint
- 651.6
- Scope 1 (fuel you burn)
- 123.4
- Scope 2 (electricity)
- 55.5
- Scope 3 (travel, commuting, purchases)
- 472.7
- Intensity per $1M revenue
- 130.3
- Per employee
- 21.7
- Reduction from five levers
- 127.9
What stands out
Purchased goods & services is your largest source (58%)
375 tCO2e of 652. Reduction effort should start where the tonnes are.
Scope 3 is 73% of your footprint
Most of your emissions sit with suppliers and travel. Large customers asking for data will increasingly ask for these, and spend-based estimates are the least precise; supplier-specific data improves them.
Electricity adds 56 tCO2e that a green tariff could remove
Only 0% of your power is renewable. This is usually the fastest, cheapest cut available.
Five common levers cut about 20% (128 tCO2e)
Led by "Switch to 100% renewable electricity" at 56 tCO2e.
Next actions
- Switch to 100% renewable electricity: about 56 tCO2e a year (9% of your footprint).
- Engage top suppliers to cut their footprint 10%: about 38 tCO2e a year (6% of your footprint).
- Replace the default emission factors with your utility's published grid factor and current EPA or GHG Protocol factors before sharing numbers externally.
- Set a baseline year, re-run this every 12 months, and report intensity per $1M revenue so growth does not hide progress.
Model assumptions & limitations
- All emission factors are editable estimates, not authoritative values. Verify against EPA, eGRID, or GHG Protocol sources for any disclosure.
- Scope 2 is location-based; renewable share removes that portion of electricity emissions (a market-based simplification).
- Employee commuting assumes 15 miles each way, 230 workdays, 25 mpg gasoline cars.
- Scope 3 is partial: covers purchased goods/services (spend-based), air travel, and commuting only.
- Lever sizes are rules of thumb (e.g. 25% fleet cut, 30% fewer flights, 10% supplier reduction).