Gallon (US liquid) to Gallon (Imperial) Conversion Result

Gallon (US liquid): unit of volume in the U.S. customary system widely used for measuring larger quantities of liquid. It is one of the most commonly recognized volume units in the U.S., particularly for gasoline, milk, and water. The U.S. gallon is abbreviated as "gal" and 1 gallon is equal to 3,785.411784 ml.

Relation to Other U.S. Customary Units:
  • 1 gallon = 4 quarts.
  • 1 gallon = 8 pints.
  • 1 gallon = 16 cups.
  • 1 gallon = 231 cubic inches.

Interesting facts:
  • 1 U.S. gallon of water weighs approximately 8.34 pounds (3.78 kg).
  • The U.S. gallon is smaller than the imperial gallon, which can lead to confusion in international trade or travel.
  • In the U.S., fuel efficiency is measured in miles per gallon (MPG), which is a key metric for vehicle performance.


Gallon (Imperial): unit of volume in the imperial system of measurement, historically used in the United Kingdom and its former colonies. The imperial gallon is approximately 20% larger than the U.S. gallon and is equal to 4,546.09 milliliters.

Relation to Other Imperial Units:
  • 1 gallon = 4 quarts.
  • 1 gallon = 8 pints.
  • 1 gallon = 32 gills.
  • 1 gallon = 277.42 cubic inches.

Interesting Facts:
  • The term "gallon" comes from the Old Northern French word galon, meaning "a liquid measure".
  • 1 imperial gallon of water weighs approximately 10 pounds, making it a handy reference for historical trade.