Carbon Footprint Calculator

Estimate your annual CO₂ emissions and compare to global averages

Transportation

Miles Driven / Year

Car Fuel Efficiency (MPG)

Flights per Year

Typical Flight Type

Home Energy

Electricity (kWh/month)

Natural Gas (therms/month)

Diet

About

Emission factors: gasoline 8.89 kg CO₂/gallon; US electricity grid 0.386 kg/kWh; natural gas 5.3 kg/therm. Flight estimates include radiative forcing multiplier. The global average is ~4.7 tonnes; the Paris Agreement target requires <2 tonnes per person by 2050.