Global Fuel CalculatorLitres to Gallons Converter
Filled up abroad and need to know how many gallons that was? Or comparing a tank size in litres with an American spec sheet? Enter the litres and this converter gives you US and imperial gallons together, which matters because the two differ by about 20%.
A US gallon is 3.785411784 litres; an imperial gallon is 4.54609. So 50 litres is 13.21 US gallons but only 11.00 imperial gallons. Which one you need depends on where the figure is headed: American sources use the US gallon and British ones the imperial.
Litres to Gallons Converter
The conversion formula
US gallons = litres ÷ 3.785412; imperial gallons = litres ÷ 4.54609
Worked example: 50 L = 13.21 US gal
Need it the other way round? Use the Gallons to Litres Converter.
Litres to Gallons conversion table
| L | US gal | imp gal |
|---|---|---|
| 5 | 1.32 | 1.10 |
| 10 | 2.64 | 2.20 |
| 20 | 5.28 | 4.40 |
| 40 | 10.57 | 8.80 |
| 50 | 13.21 | 11.00 |
| 60 | 15.85 | 13.20 |
| 100 | 26.42 | 22.00 |
How to use the Litres to Gallons Converter
- Enter your value. Type the figure you want to convert, in litres.
- Check the units. Make sure "From" shows litres and "To" shows US gallons. Press Swap to reverse them.
- Read the result. The answer appears straight away, worked out as US gallons = litres ÷ 3.785412; imperial gallons = litres ÷ 4.54609.
- Check common values. Compare against the conversion table below if you want to sanity-check a figure.
Common questions
How many litres are in a gallon?
A US gallon is 3.785 litres and an imperial (UK) gallon is 4.546 litres.
How do I convert litres to gallons by hand?
Divide the litres by 3.785 for US gallons, or by 4.546 for imperial gallons. A typical 50-litre tank is about 13.2 US gallons.
Why are there two different gallons?
Britain standardised the imperial gallon in 1824, while the United States kept an older wine gallon of 231 cubic inches. The two never converged.
How big is a typical car fuel tank in gallons?
Small cars hold roughly 35 to 45 litres (about 9 to 12 US gallons), and family cars 50 to 60 litres (about 13 to 16 US gallons).
Is the conversion different for diesel and petrol?
No. A gallon and a litre are units of volume, so the maths is the same whatever liquid is in the tank.