Car vs. EV Carbon Comparison Calculator
Sustainability & EnvironmentCompare the annual CO2 emissions of a gas car versus an electric vehicle for the same driving distance.
Annual CO2 Savings (EV vs. Gas)
How many metric tons of CO2 you'd save annually by driving the EV instead of the gas car.
Gas Car Annual Emissions
3.81
Estimated annual CO2 emissions (metric tons) from the gas vehicle.
EV Annual Emissions
1.37
Estimated annual CO2 emissions (metric tons) from charging the EV, based on your local grid's emissions factor.
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Sustainability & Environment calculators
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Sustainability & Environment calculators
Frequently Asked Questions
Why does the grid emissions factor matter so much?
An EV is only as clean as the electricity that charges it — in regions with a coal-heavy grid, EV emissions savings are smaller, while in regions with more renewable or nuclear power, EVs offer a much larger emissions advantage.
Where can I find my local grid's emissions factor?
The US EPA's eGRID database provides regional grid emissions factors, or check your local utility provider, which often publishes its specific energy mix and associated emissions intensity.
Does this account for vehicle manufacturing emissions?
No, this compares only operational (driving/charging) emissions. EV battery manufacturing does have a higher upfront carbon cost than a comparable gas vehicle, though this is typically offset within the first few years of driving due to lower operational emissions.
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