1 gallon (US) =3.785 4 12 liter.
1 gallon (English) =4.546 092 liters.
Gallon is a unit of volume (volume), the full English name is gallon, and the abbreviation is Gal.
Extended data:
English gallon is an informal standardized unit used in Britain, its former colonies and Commonwealth countries. Britain completed the conversion to the international system of units in 1995. Now officially, gallons are only used in the United States, Liberia and Myanmar. While other countries or regions use the international system of units, that is, the metric system, also known as the metric system.