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.
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.
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. |