Measures conversion: Gallons to Litres
Convert measures. UK and US Gallons to litres conversions. Convert measure of volume from UK or US Gallons to litres and vice-versa. Convert Litres to gallons, or gallons to litres.
A gallon is a measure of volume of approximately four litres. Historically it has had many different definitions, but there are three definitions in current use. These are the US liquid gallon (≈ 3.8 L) and the lesser used US dry gallon (≈ 4.4 L) which are in use in the United States, and the UK Imperial gallon (≈ 4.5 L) which is in unofficial use within the United Kingdom and Ireland and is in semi-official use within Canada. The gallon, be it the Imperial or U.S. gallon, is sometimes found in other English-speaking countries.
The US liquid gallon is legally defined as 231 cubic inches, and is equal to exactly 3.785411784 litres or about 0.133680555 cubic feet. This is the most common definition of a gallon in the United States. The U.S. fluid ounce is defined as 1⁄128 of a US gallon.
The US dry gallon is one-eighth of a U.S. Winchester bushel of 2150.42 cubic inches, thus it is equal to exactly 268.8025 cubic inches or 4.40488377086 litres. The US dry gallon is less commonly used, and is not listed in the relevant statute, which jumps from the dry quart to the peck.
The imperial UK gallon was legally defined as 4.54609 litres. This definition is used in some Commonwealth countries and Ireland, and is based on the volume of 10 pounds of water at 62 °F. (A liquid US gallon of water weighs about 8.33 pounds at the same temperature.) The imperial fluid ounce is defined as 1⁄160 of an imperial gallon.
| US GALLONS | LITRES | UK GALLONS | |
| US GALLON | 1 | 3.9 | 0.83 |
| UK GALLON | 1.2 | 4.54 | 1 |
| LITRE | 0.26 | 1 | 0.22 |