Gallon

The gallon is a measure of volume from both the Imperial and U.S. Systems.

The symbol for the gallon is gal, and two major types can be distinguished.

Gallon (UK)

1 gal = 4.546 liters

1 gal = 277 in³

Gallon (US)

1 gal = 3.785 liters

1 gal = 231 in³