How many litres are in a gallon?
This is a bit tricky, depending on the ‘gallon’ in question. Simply put, a gallon refers to a measure of capacity equal to eight pints(4.5 litres; for wine or U.S its roughly 3.8 Litres: IN DETAIL: There are three definitions in current use: * U.S. liquid gallon is legally defined as 231 in³, which is equal to 3.785411784 liters (exactly) or about 0.13368 cubic feet. This is the most common definition of a gallon. The U.S. fluid ounce is defined as 1/128 of a U.S. gallon. * U.S. dry gallon is one-eighth of a U.S. Winchester bushel of 2150.42 in³, thus 268.8025 in³ (exactly) or 4.40488377086 liters (exactly) * Imperial (UK) gallon is legally defined as 4.54609 litres, which is about 1.2 U.S. liquid gallons. This definition is occasionally used in United Kingdom, and is based on the volume of 10 pounds of water at 62 °F. (A U.S. liquid gallon weighs about 8.33 pounds at the same temperature.) The Imperial fluid ounce is defined as 1/160 of an Imperial gallon. The word has also been used
