Mileage and Fuel Cost Calculator: What Will My Journey Cost?

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Common questions

How much does a mile of driving cost in fuel?

At the UK average price for the week of 26 October 2026 (174.1p a litre of petrol), a car doing 45 mpg uses about 17.6p of fuel a mile. Diesel at 199.2p a litre and 50 mpg is about 18.1p a mile.

Where do the fuel prices come from?

The average price at the forecourts near where you start, from the government’s Fuel Finder prices. Where there are too few near you, the UK average published each week by GOV.UK. You can type the price at your own forecourt instead.

How accurate is the distance?

It’s an estimate of the road distance. Your route may be a little longer or shorter, so check the miles on your sat-nav for an exact figure.

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Mileage and fuel cost calculator

Don’t burn fuel sitting in a queue

Common questions