Fuel and charging cost calculator
Compare up to three cars on yearly fuel or charging cost. Pick a car to load its official economy, or type your own, then set the prices you actually pay.
Car A
Between 10 and 120.
Car B
Between 1.5 and 7.
- Car B costs £564 a year less than Car A.
Between 1,000 and 50,000 miles.
Fuel and electricity prices (your assumptions)
The rest is charged at the public rapid price. Applies to electric cars only.
Comparison
| Car | Energy a year | Price used | Cost a mile | Cost a year |
|---|---|---|---|---|
| Car A | 909 litres | £1.75/litre | 15.9p | £1,594 |
| Car B | 2,857 kWh | £0.36/kWh | 10.3p | £1,030 |
| Car A | £1,594 |
|---|---|
| Car B | £1,030 |
Fuel and charging only. No tax, insurance or servicing. Hybrids use their official combined mpg; there is no separate electric input.
Car Lease Deals UK, carleasedealsuk.co.uk. Economy figures: Vehicle Certification Agency (VCA). Prices are the user's assumptions. Printed . An estimate, not advice.
Frequently asked questions
Why is my real mpg lower than the official figure?
The official number comes from a standard lab test. Cold weather, short trips, fast motorway driving and heavy loads all cut economy, so most drivers see somewhat less. It is still the fairest way to compare cars.
How do I work out the cost to charge an electric car?
Divide your yearly miles by the car's miles per kWh to get units of electricity, then multiply by your price per unit. Home charging is usually far cheaper than public rapid charging.
Is an electric car always cheaper to fuel?
Almost always if you can charge at home on a normal or off-peak tariff. If you rely on public rapid chargers the gap narrows and can disappear.
What price should I use for petrol?
Use what you actually pay locally. We start you off with the latest DESNZ weekly UK average, but prices move weekly, so edit it.
Do these figures include tax, insurance or servicing?
No. This tool is fuel and charging only. Use the true monthly cost tool for an all-in figure.