EV vs. Gas Calculator

Would an electric car actually save you money — and how much cleaner is it, really? Enter your driving, gas price, MPG, and electricity rate to compare your gas car's annual fuel cost and CO₂ against a typical EV, using your own numbers.

Your driving

The US average is about 13,500 miles per year.
Find it on fueleconomy.gov or your dashboard.
Check your utility bill. US residential average is roughly $0.17/kWh.

Your comparison

⛽ Gas car

$0

fuel cost per year · 0 gal/yr

0

tonnes CO₂e per year

⚡ Electric car

$0

charging cost per year · 0 kWh/yr

0

tonnes CO₂e per year (grid-charged)

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Emission factors and assumptions
EV efficiency0.30 kWh/mile (typical midsize EV, ~3.3 mi/kWh)
Gasoline CO₂e19.6 lb CO₂ per gallon (EPA)
Grid electricity CO₂e0.85 lb CO₂ per kWh (EPA eGRID US average — your local grid may be cleaner or dirtier)
Not includedPurchase price, insurance, maintenance, and battery manufacturing

Estimates only. Actual charging cost depends on time-of-use rates, home vs. public charging, and your car's real-world efficiency.