Fuel Cost Calculator for the UK
Work out the fuel cost of any drive in the UK in GBP. With petrol at roughly £1.45 per litre, diesel around £1.5, and home electricity near £0.28/kWh, here is what common distances cost. Set your own vehicle and the current pump price for an exact figure.
Fuel cost by distance (petrol)
| Distance | Petrol used | Fuel cost |
|---|---|---|
| 100 km | 8 L | £11.6 |
| 300 km | 24 L | £34.8 |
| 500 km | 40 L | £58 |
| 1,000 km | 80 L | £116 |
Indicative figures at £1.45/litre and 8 L/100km. Prices change often: enter the current local price in the planner.
Petrol vs diesel vs electric per 100 km
| Fuel type | Assumption | Cost per 100 km |
|---|---|---|
| Petrol | 8 L/100km @ £1.45/L | £11.6 |
| Diesel | 6.5 L/100km @ £1.5/L | £9.75 |
| Electric (home charge) | 18 kWh/100km @ £0.28/kWh | £5.04 |
A typical 880 km/month commute (40 km a day, 22 days) is about £102 on petrol versus £44.35 charging an EV at home in the UK.
Calculate your trip's fuel cost in GBP
No account needed. Works on any device, in 70+ currencies.
Open the route plannerFrequently asked questions
How do I calculate fuel cost for a trip in the UK?
Fuel cost = distance (km) / 100 x your car's consumption (L/100km) x the fuel price per litre. In the UK petrol is around £1.45/litre and diesel about £1.5/litre. TripKalc does this automatically for every leg of a multi-stop route.
What is the fuel cost per km in the UK?
For an average petrol car (8 L/100km) it is about £0.12 per km. A diesel is roughly £0.1 per km and an EV charged at home around £0.05 per km.
What currency does the calculator use?
It auto-detects UK users and pre-fills GBP, but you can pick any of 70+ currencies and set your own fuel price.
Does it work for diesel and electric vehicles?
Yes. Switch fuel type to compare petrol, diesel, and electric (kWh/100km at your local electricity rate) side by side.