Fuel cost calculator
What a journey costs in fuel, starting from today’s live UK pump price for the fuel you choose, from the Government’s Fuel Finder scheme.
A 100-mile journey in a car doing 45 mpg uses 10.1 litres of unleaded petrol (E10), costing £17.57 at today's UK median of 173.9p a litre.
What 100 miles costs in each fuel today
At 45 mpg, 100 miles uses 10.1 litres whatever the fuel, so the cost follows the price per litre.
| Fuel | Price per litre | 100 miles | Per mile |
|---|---|---|---|
| Unleaded (E10) | 173.9p | £17.57 | 17.6p |
| Super Unleaded (E5) | 192.9p | £19.49 | 19.5p |
| Diesel (B7) | 199.9p | £20.19 | 20.2p |
| Premium Diesel (B7) | 219.9p | £22.21 | 22.2p |
| Biodiesel (B10) | 199.9p | £20.19 | 20.2p |
| HVO Diesel | 234.9p | £23.73 | 23.7p |
Median price per litre across UK forecourts, so half charge less and half more. Stale and implausible prices are left out; no price is altered.
Frequently Asked Questions
How much does a 100-mile journey cost in fuel?
At today's UK prices, a 100-mile journey in a car doing 45 mpg costs £17.57 in unleaded petrol (E10) and £20.19 in diesel. The same journey in unleaded petrol (E10) costs £26.35 in a car doing 30 mpg and £13.18 in one doing 60 mpg.
How much fuel does a 100-mile journey use?
10.1 litres at 45 mpg, 15.2 litres at 30 mpg and 7.6 litres at 60 mpg. Divide the miles by the car's mpg to get gallons, then multiply by 4.546, the litres in a UK gallon.
How much does fuel cost per mile?
In a car doing 45 mpg, unleaded petrol (E10) at today's UK median of 173.9p a litre costs 17.6p a mile. Cost per mile is the price of a litre times 4.546, divided by the car's mpg.
Is the mpg in UK or US gallons?
UK gallons, which hold 4.546 litres, as quoted by UK manufacturers and on UK car adverts. A US gallon is smaller, so the same car's US mpg figure is about a sixth lower. If you know your car's consumption in litres per 100 km instead, switch the economy unit and enter that.
Where does the price per litre come from?
The price starts at today's median for the fuel you choose, across the 7,878 forecourts reporting unleaded petrol (E10) to the UK Government's Fuel Finder scheme, refreshed about every 30 minutes and leaving out stale and implausible prices. Change it to what your local forecourt charges for an exact figure.
For live prices at the forecourts near you, browse fuel prices by town. To see how the national average has moved, see the UK fuel price history.
Prices as of .