Cups to Gallons Converter

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Switch between cups-to-gallons and the reverse direction.
The number of cups you want to convert.
cups
Different regions define a cup differently. US customary (236.6 mL) is the everyday US kitchen standard; the US legal cup (240 mL) appears on nutrition labels; the metric cup (250 mL) is used in Australia, Canada officially, and the UK; the imperial cup (284.1 mL) is the older British standard; the Canadian cup (227.3 mL) is the older half-pint.
The US gallon (231 cubic inches, 3785.4 mL) is standard in the United States. The imperial gallon (277.4 cubic inches, 4546.1 mL) is used in the UK, Canada and some Caribbean countries.
Gallons
0.999999gal

Volume expressed in gallons

Litres3.7854L
Millilitres3,785.4mL
Quarts4qt
Pints8pt
Fluid ounces128fl oz
Tablespoons256tbsp
Teaspoons768tsp
Conversion rate1 gal = 16.0000 cups
Gallons0.999999
Quarts4
Pints8

16 US customary cups = 1.0000 US gallons

  • 16 US customary cups equal 1.0000 US gallons.
  • One US gallon holds 16.0000 US customary cups.
  • In everyday US cooking, 16 cups = 1 gallon, 8 cups = half a gallon, 4 cups = 1 quart.
  • The same volume is 3.785 litres or 3785.4 mL.

Next stepNeed a different volume unit? The table below shows tablespoons, teaspoons, pints, quarts and fluid ounces for the same volume.

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