Vehicle Emission Calculator
Annual CO2 Emissions
Calculate your vehicle's annual CO2 emissions
Compare Vehicle Emissions
Compare CO2 emissions of two vehicles
Formula
Annual CO2 = (Annual Miles / MPG) x CO2 per Gallon; Gasoline: 19.6 lbs CO2/gallon, Diesel: 22.4 lbs CO2/gallon
Frequently Asked Questions
How much CO2 does a car produce per gallon?
Burning one gallon of gasoline produces about 19.6 pounds (8.9 kg) of CO2. Diesel produces about 22.4 pounds (10.2 kg) per gallon. These are direct tailpipe emissions and do not include upstream emissions from fuel production and transport.
What is the average CO2 emission for a car?
The average passenger vehicle in the US emits about 4.6 metric tons of CO2 per year, based on about 11,500 miles driven at 24 MPG. More fuel-efficient vehicles and hybrids produce significantly less, while trucks and SUVs produce more.
How do electric vehicles compare for emissions?
EVs produce zero direct (tailpipe) emissions. However, their total emissions depend on the electricity source. On the US average grid, an EV produces about 2.0 metric tons of CO2 per year equivalent, roughly 60% less than an average gas car. In states with clean energy, the difference is even greater.
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