U.S. Petroleum Gallon

A U.S. petroleum gallon, often abbreviated as “gal,” is a standard unit of volume used in the United States for measuring liquid quantities, particularly petroleum products like gasoline, diesel, and other fuels. The volume of a U.S. petroleum gallon is defined as 231 cubic inches at a temperature of 15.5°C (59.9°F). This definition is important for various industries, including the energy sector, transportation, and manufacturing, where precise measurements of liquid volumes are necessary for trading, transportation, and regulatory purposes.