Home Carbon Footprint Calculator — Energy & Transport
Calculate your household's annual carbon footprint from electricity, gas heating and driving. See how solar panels, an EV and a heat pump would reduce your CO2 emissions.
· Free · No signup required
Annual CO₂ emissions
Total annual footprint
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tonnes CO₂ per year
With solar + EV + heat pump
—
tonnes CO₂ — potential reduction
Electricity emissions
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Gas heating emissions
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Driving emissions
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Potential CO₂ reduction
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How to use this calculator
- Enter your monthly electricity usage in kWh.
- Enter your annual natural gas usage in therms.
- Enter your annual driving miles and vehicle fuel efficiency.
- See your total annual CO2 emissions in tonnes.
- See the impact of switching to solar, an EV, and a heat pump.
Frequently asked questions
The average US household emits about 7.5 tonnes of CO2 per year from home energy and driving combined. Electricity accounts for about 2 tonnes, natural gas heating 3 tonnes, and driving 2.5 tonnes.
A typical 7kW solar system offsets approximately 5-7 tonnes of CO2 per year — equivalent to planting 250-350 trees annually or taking a car off the road for a year.
Yes, in virtually every US state. Even on today's grid, EVs produce 50-70% less lifetime CO2 than gas cars. In states with high renewable energy (California, New York, Washington), EVs produce 80%+ less CO2.