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

Ver formula →

Formula

## How Carbon Footprint Is Estimated Your carbon footprint includes emissions from transportation, home energy, and air travel. ### Emission Factors Used - **Driving**: 19.6 lbs CO2 per gallon of gasoline - **Electricity**: 0.92 lbs CO2 per kWh (US average) - **Natural Gas**: 11.7 lbs CO2 per therm - **Flights**: ~90 kg CO2 per flight hour per passenger (x 2.2 for lbs)

Exemplo Resolvido

12,000 miles at 28 MPG, 900 kWh/mo electricity, 40 therms/mo gas, 10 flight hours.

  1. 01Driving = 12,000 / 28 x 19.6 = 8,400 lbs CO2
  2. 02Electricity = 900 x 12 x 0.92 = 9,936 lbs CO2
  3. 03Natural gas = 40 x 12 x 11.7 = 5,616 lbs CO2
  4. 04Flights = 10 x 90 x 2.2 = 1,980 lbs CO2
  5. 05Total = 8,400 + 9,936 + 5,616 + 1,980 = 25,932 lbs = 11.8 tonnes