Is an EV cheaper to run than a petrol car?

In most cases, yes. Electricity is significantly cheaper per mile than petrol, especially if you charge at home. Typical EV running costs are 5-8p/mile vs 15-20p/mile for petrol.

How do I compare EV charging cost with petrol cost?

Calculate the cost per mile for each: EV = electricity rate ÷ miles per kWh. Petrol = (fuel price × 4.546) ÷ MPG. Multiply each by your annual mileage to compare.

How much can I save by switching to an EV?

It depends on your mileage and energy prices. A typical UK driver doing 8,000 miles/year could save £400-£700/year on fuel costs alone by switching to an EV.

EV vs Petrol Cost Calculator

EV energy cost = miles ÷ miles/kWh × electricity rate. Petrol fuel cost = miles ÷ MPG × 4.546 × fuel price per litre. Compare annually to see which is…

What this calculator does

This calculator estimates and compares annual running costs for an EV and a petrol car. It includes energy/fuel costs, and optionally maintenance and road tax. Results show cost per mile, monthly, and annual comparisons.

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