Litres to Gallons Converter
Convert litres to gallons instantly. This calculator uses the UK imperial gallon of 4.54609 litres, the one used in British fuel economy figures.
Enter a volume below and the answer updates as you type. The chart underneath also gives US gallons, because the two are not the same size.
Litres to Gallons converter
litres (L)= UK gallonsThe formula
litres ÷ 4.54609 = UK gallons. For US liquid gallons, divide by 3.785411784 instead.
The difference between the two gallons trips people up constantly. A UK imperial gallon is 4.54609 litres and a US liquid gallon is 3.785411784 litres, so the British gallon is about twenty per cent larger. A car quoted at 40 miles per gallon in the United States would be about 48 miles per UK gallon for the same fuel use.
British fuel is sold in litres but economy is still quoted in miles per gallon, which is why this conversion appears on every forecourt calculation. To turn litres per 100 km into miles per gallon, divide 282.48 by the litres per 100 km figure.
Litres to gallons chart
| Litres | UK gallons | US gallons |
|---|---|---|
| 1 L | 0.22 | 0.26 |
| 5 L | 1.10 | 1.32 |
| 10 L | 2.20 | 2.64 |
| 20 L | 4.40 | 5.28 |
| 40 L | 8.80 | 10.57 |
| 50 L | 11.00 | 13.21 |
| 60 L | 13.20 | 15.85 |
| 100 L | 22.00 | 26.42 |
| 200 L | 44.00 | 52.83 |
Frequently asked questions
How many litres are in a UK gallon?
Exactly 4.54609 litres. The US liquid gallon is smaller, at 3.785411784 litres.
How many gallons is a 50 litre tank?
About 11 UK gallons, or 13.2 US gallons.
Why are UK and US gallons different?
The imperial gallon was redefined in 1824 as the volume of ten pounds of water, while the United States kept the older wine gallon. Neither has changed since.
How do I work out miles per gallon from litres?
Work out the miles driven, divide by the litres used to get miles per litre, then multiply by 4.54609 for miles per UK gallon.
Is a pint one eighth of a gallon?
Yes in both systems, but the pints differ too: a UK pint is 568 ml and a US pint is 473 ml.
Related converters
See the full volume converter for every unit in this family, or browse our guide to units of measurement.