Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Climate
Carbon Footprint Calculator
Estimate annual personal CO₂ emissions from home electricity, natural gas heating, and personal car mileage. Useful for comparing your footprint to national averages and identifying the highest-impact reduction opportunities.
Fill in the required fields to see your result.
Climate
Greenhouse Gas Equivalents Calculator
Convert any greenhouse gas quantity into CO₂ equivalent tonnes using its Global Warming Potential (GWP). Use it when reporting emissions or comparing the climate impact of different gases.
Fill in the required fields to see your result.
Key differences
| Carbon Footprint Calculator | Greenhouse Gas Equivalents Calculator | |
|---|---|---|
| Category | Climate | Climate |
| Inputs required | 3 | 4 |
| Result | Annual CO2 Emissions (lbs CO2) | CO2 Equivalent Emissions (tons CO2e) |
| What it does | Estimate annual personal CO₂ emissions from home electricity, natural gas heating, and personal car mileage. Useful for comparing your footprint to national averages and identifying the highest-impact reduction opportunities. | Convert any greenhouse gas quantity into CO₂ equivalent tonnes using its Global Warming Potential (GWP). Use it when reporting emissions or comparing the climate impact of different gases. |