EV vs Gas Savings Calculator
Compare the yearly fuel cost of an electric car against a gas car from your annual mileage and local energy prices, with the annual and five-year savings and cost per mile for each. Calculates in your browser.
Annual fuel savings (EV)
-
Show the math
Compare the yearly energy bill of each powertrain:
EV/yr = miles ÷ miles-per-kWh × $/kWh
gas/yr = miles ÷ mpg × $/gallon
savings = gas − EV
This compares fuel only, not purchase price, maintenance, or incentives. EVs usually win on fuel and upkeep. A negative figure means gas is cheaper to run at your prices. All math runs locally in your browser.
What this does
An EV vs gas savings calculator compares the yearly fuel cost of an electric car against a gas car from your annual mileage and local energy prices, with the annual and five-year savings and cost per mile for each.
How it works
It computes each car’s yearly energy bill (the EV from miles ÷ miles-per-kWh × price per kWh, the gas car from miles ÷ mpg × price per gallon) then shows the difference as your annual saving.
How to use it
- Enter your annual mileage.
- Enter the EV efficiency and electricity price.
- Enter the gas car mpg and fuel price.
- Read the annual and five-year savings.
Understanding your result
This compares fuel cost only, not purchase price. EVs often cost more up front but less to run, so factor in price, maintenance, and any incentives separately.
Example
Driving 12,000 miles, a 3.5 mi/kWh EV at $0.15 versus a 28 mpg car at $3.50 saves roughly $1,000 a year.
Sources & methodology
- U.S. DOE/EPA, fueleconomy.gov, EV efficiency and running-cost comparison
Last updated .
Frequently asked questions
How does the comparison work?
It computes each car’s yearly energy bill (the EV from miles ÷ miles-per-kWh × price per kWh, and the gas car from miles ÷ mpg × price per gallon) then shows the difference as your annual saving.
Does this include the purchase price?
No. It compares fuel cost only. EVs often cost more up front but less to run; factor in price, maintenance, and any incentives separately.
What if gas comes out cheaper?
At low electricity-to-gas price ratios or for very efficient gas cars, the saving can be negative, meaning gas is cheaper to fuel at your prices. Try your real local rates.
Do you store my numbers?
No. Everything is calculated locally in your browser.
Related tools
EV Charging Cost Calculator
Estimate the cost to charge an electric car from one state of charge to another (accounting for charging losses) with the range added and the cost per mile. Calculates in your browser.
Car Lease Payment Calculator
Work out a car lease payment from the price, residual value, and money factor, split into depreciation and finance charge, with the equivalent APR and total cost. Calculates in your browser.
Car Affordability Calculator
Find the car price you can afford from a monthly payment budget, working backwards through your rate, term, down payment, trade-in, sales tax, and fees. Calculates in your browser.
Fuel Cost Calculator
Estimate the fuel cost of a trip from the distance, your fuel economy, and the price of fuel, in imperial (mpg) or metric (L/100km), with a round-trip option. Calculates in your browser.