Gallons
A gallon is a unit of volume used primarily in the United States and several Commonwealth countries. The term has historical roots in medieval England, where various local measures were called a gallon. In modern practice, two main definitions are in active use: the U.S. gallon and the imperial (British) gallon.
The U.S. gallon is defined as 231 cubic inches, which equals 3.785411784 liters. It is the standard
The imperial gallon, used in the United Kingdom and some Commonwealth nations, is defined as 277.419 cubic
Dry and related measures: In the United States, there is also a US dry gallon, defined as
Conversions: 1 U.S. gallon = 3.785411784 liters; 1 imperial gallon = 4.54609 liters; 1 U.S. dry gallon = 4.40488377