Imperial gallons to litres
An imperial gallon is exactly 4.54609 L. Used in the UK, Ireland and parts of the Caribbean, it runs twenty percent larger than the US gallon of 3.785 L.
Common values
Formula
L = gal × 4.54609
This is where fuel economy comparisons go wrong most often. Imperial mpg always looks higher than US mpg without the car being any more efficient.
Frequently asked questions
Q. How many L is 1 gal?
1 gal is 4.5461 L, and 10 gal is 45.4609 L. Type any value in the box above to convert instantly.
Q. And how many gal is 1 L?
1 L is 0.22 gal. This converter works both ways, so typing in the right box updates the left one.
Q. Where is this unit used?
This is where fuel economy comparisons go wrong most often. Imperial mpg always looks higher than US mpg without the car being any more efficient.
Other converters
Traditional units (geun, doe, majigi and so on) vary by region and product.