ELECTRIC VS PETROL

Know your cost
per mile.

A clearer way to compare the cost of charging your EV with filling up a petrol car.

YOUR JOURNEY

Set your drive

1. Battery size

Pick the closest battery capacity.

Example: Vauxhall Corsa Electric · 50 kWh class

2. Distance to drive

miles

1 mile500 miles

3. Driving efficiency

Real-world efficiency varies with weather, speed and driving style.

Adjust prices & assumptions

Home electricity p/kWh Slow public charger p/kWh Rapid public charger p/kWh Charging overhead % Petrol price p/litre Petrol car efficiency UK mpg Petrol comparison Auto-matches your battery size; selecting a different car overrides it until you change battery size.

The petrol MPG is an editable comparison assumption. Figures vary by engine, trim, transmission and driving conditions.

Your settings stay on this device.

YOUR EV RANGE

200 miles

50 kWh · Standard

Estimated range on a full battery50% of battery for this trip

COST OF YOUR TRIP

Choose how to charge

Live calculation

AT HOME

Home charging

7p per kWh

£1.93

£0.02 per mile

Save vs petrol

PUBLIC AC

Slow public

50p per kWh

£13.75

£0.14 per mile

Save vs petrol

PUBLIC RAPID

Rapid charging

70p per kWh

£19.25

£0.19 per mile

vs petrol

THE PETROL ALTERNATIVE

Vauxhall Corsa 1.2 petrol

52.3 UK mpg · 175.28p/litre

Trip total£15.24

Cost per mile15.2p

Fuel needed8.7 litres

Compared with home£13.31 more

Petrol reference: UK weekly average · 12 Oct 2026 Reference price

THE TAKEAWAY

Charging at home costs less than petrol for this journey.

Charging losses included

We add a 10% allowance for electricity lost during charging. Change this in assumptions if you prefer another estimate.

Real-world, not a promise

Actual range and running costs depend on temperature, speed, traffic, vehicle, charger and tariff. Purchase price, servicing, tax and depreciation are excluded.

Transparent petrol benchmark

Petrol prices are sourced from the UK Government's weekly road-fuel statistics when online. View the official data ↗

Know your costper mile.