Fuel cost calculator
Fuel cost per mile vs electric charging
Compare the cost of driving a petrol, diesel or gas car against an electric car. Enter your mileage and local petrol economy to see the cost per mile and annual energy spend.
Typical petrol: 42 MPG
National average: 7,400 miles
p14.6
per mile
£1,081 / year
Based on 42.0 MPG
p8.9
per mile
£658 / year
Based on 3.50 miles/kWh
Estimated annual saving
£423
Switching to an EV could save you £423 a year on energy alone.
Includes purchase price, tax, insurance, servicing and live fuel prices.
Frequently asked questions
How is fuel cost per mile calculated?
We divide the price of fuel by your car's real-world MPG. For an EV, we divide the effective electricity price per kWh by the miles the car travels per kWh.
Is this calculator for the UK or US?
Both. Pick your country at the top of the page and the calculator switches to local currency, units, fuel names and average prices.
Does this include the cost of the car itself?
No — this page compares energy costs only. Use our full EV cost calculator to factor in tax, insurance, servicing and purchase price.