Free Carbon Footprint Calculator
Estimate your annual carbon footprint from driving, home energy, and flights.
miles
MPG
kWh
therms
hrs
Total Annual CO2
25,932 lbs
In Metric Tons11.8 tonnes
Driving CO28,400 lbs
Home Energy CO215,552 lbs
Total Annual CO2 vs Annual Miles Driven
How Carbon Footprint Is Estimated
Your carbon footprint includes emissions from transportation, home energy, and air travel.
Emission Factors Used
Example Calculation
12,000 miles at 28 MPG, 900 kWh/mo electricity, 40 therms/mo gas, 10 flight hours.
- 01Driving = 12,000 / 28 x 19.6 = 8,400 lbs CO2
- 02Electricity = 900 x 12 x 0.92 = 9,936 lbs CO2
- 03Natural gas = 40 x 12 x 11.7 = 5,616 lbs CO2
- 04Flights = 10 x 90 x 2.2 = 1,980 lbs CO2
- 05Total = 8,400 + 9,936 + 5,616 + 1,980 = 25,932 lbs = 11.8 tonnes
Frequently Asked Questions
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