EV vs Petrol Cost Calculator
See the monthly and yearly running-cost difference between an EV and a petrol car using your own numbers.
Enter both vehicles' details
Compare running costs side by side using your own driving pattern.
Reading the breakeven estimate
If the EV you're considering costs more upfront than the petrol alternative, the breakeven figure estimates how many months of running-cost savings it takes to make up that difference — based purely on fuel/electricity cost, not including differences in maintenance, insurance or resale value, which also affect the full picture.
Frequently asked questions
Does this include the purchase price difference?+
The optional price premium field lets you estimate how long running-cost savings take to offset a higher EV purchase price, but the main monthly/yearly figures are running cost only.
Does this account for maintenance cost differences?+
No — this tool focuses on fuel/electricity cost specifically. EVs generally have fewer moving parts and can have lower maintenance costs too, but that isn't quantified here. Use the Total Cost of Ownership calculator for a fuller picture including maintenance and insurance.