Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Carbon Footprint
Home Energy Carbon Calculator
Estimate annual CO₂ emissions from your home's electricity and natural gas use, given your monthly consumption and the carbon intensity of your electricity grid. Returns kilograms of CO₂ per year.
Carbon Footprint
Total Carbon Footprint Calculator
Sum your annual CO2 emissions across transport, home energy, food, and lifestyle categories into one total footprint figure. Use this as a dashboard view when comparing your impact to national or global averages.
Key differences
| Home Energy Carbon Calculator | Total Carbon Footprint Calculator | |
|---|---|---|
| Category | Carbon Footprint | Carbon Footprint |
| Inputs required | 3 | 4 |
| Result | Annual home energy CO2 emissions (kg CO2) | Total annual carbon footprint (kg CO2) |
| What it does | Estimate annual CO₂ emissions from your home's electricity and natural gas use, given your monthly consumption and the carbon intensity of your electricity grid. Returns kilograms of CO₂ per year. | Sum your annual CO2 emissions across transport, home energy, food, and lifestyle categories into one total footprint figure. Use this as a dashboard view when comparing your impact to national or global averages. |