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Driver calculators & tools

Litres to gallons converter

By Martin Pratt

Article 2 of 4

Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

Litres to gallons converter

Our free tool converts between litres and gallons so you can see exactly how much fuel it takes to fill your tank.

We measure economy by miles to the gallon, but we measure in litres at the fuel pump - our guide can convert between the two so you can more accurately judge your cars fuel economy. 

To see the cars that excelled in the Which? test lab check out our Best Buys.

Petrol prices

Our tests reveal that many car trip computers give inaccurate fuel economy readings. To discover your car’s true mpg, try using Which? Car fuel calculator

It allows you to work out the amount of fuel you used on recent trips, and see exactly how much you ended up paying for single journeys.

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