Gallon

A gallon is a unit of measurement used to measure volume. People have used many different gallons throughout history. There are three types of gallon still in use.

1 imperial gallon	= 160 imperial fluid ounces (fl. oz.) ** No longer officially used in the United Kingdom. **
	= 8 imperial pints
	= REDIRECT Template:Zero width space Template:R from move1⁄9 of a firkin (of beer)
	= REDIRECT Template:Zero width space Template:R from move1⁄8 of an imperial bushel
	= 4.54609 litres (exactly)
	≈ REDIRECT Template:Zero width space Template:R from move4 1⁄2 litres
	≈ 1.20 U.S. wet gallons
	≈ 1.03 U.S. dry gallons
	= 10 pounds of pure water at room temperature
1 U.S. wet gallon	= 231 cubic inches = 3 in × 7 in × 11 in ** This is the gallon mostly used in the US. **
	= 128 U.S. fl. oz.
	= 8 U.S. wet pints
	= REDIRECT Template:Zero width space Template:R from move1⁄42 of a U.S. oil barrel
	= 3.785411784 litres (exactly)
	≈ REDIRECT Template:Zero width space Template:R from move3 3⁄4 litres
	≈ 0.83 imperial gallons
	≈ 0.86 U.S. dry gallons
	≈ 8.33 pounds of pure water at room temperature
1 U.S. dry gallon	= 268.8025 cubic inches ** Not typically used in the US. **
	= 8 U.S. dry pints
	= REDIRECT Template:Zero width space Template:R from move1⁄8 of a U.S. bushel
	= 4.40488377086 litres (exactly)
	≈ REDIRECT Template:Zero width space Template:R from move4 2⁄5 litres
	≈ 0.97 imperial gallons
	≈ 1.16 U.S. wet gallons