Litres to Gallons Converter
Convert litres to gallons and back with our instant calculator. Be aware: UK (imperial) gallons and US gallons are different. One UK gallon equals 4.54609 litres; one US gallon equals 3.78541 litres.
Britain officially switched to litres for fuel in 1994, but older generations still think in gallons. Car fuel economy is still often discussed in miles per gallon (MPG) and beer is still legally sold in pints — making volume conversions uniquely important in Britain.
Litres to Gallons — UK & US Reference Table
Frequently Asked Questions
Litres to Gallons Converter — common questions answered
How many litres in a UK gallon?
One UK (imperial) gallon equals 4.54609 litres. This is different from the US gallon, which equals 3.78541 litres.
How many litres in a UK pint?
One UK pint equals 0.568261 litres (568ml). This is larger than a US pint (473ml).
How many pints in a litre?
There are approximately 1.76 UK pints in one litre (1 ÷ 0.568261 = 1.76).
Why are UK and US gallons different?
The US gallon is based on the old English wine gallon (231 cubic inches) while the UK imperial gallon was redefined in 1824. The UK gallon is about 20% larger than the US gallon.
How many ml in a pint?
One UK pint equals 568ml. This is the legally defined size for draught beer in British pubs.