Convert US gallon to cup

Here you can quickly calculate how many cup fit in one US gallon.

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Example: US gallon to cup

Starting value Increment Accuracy

To convert US gallon to cup, multiply by 16.

1 gal = 16 cup

Example: 1 US gallon = 16 cup

'Gallon' names two different measures: the US gallon is about 3.785 liters and the imperial gallon about 4.546 liters, a full 20% larger. US fuel figures and UK recipes therefore use different gallons. Always check the country before converting.
The US recipe cup is about 237 ml, neither 250 ml nor 200 ml. Rounding up to 250 ml makes a batch about 6% too big; rounding down to 200 ml about 15% too small. Use 2.4 dl per cup, or the exact 236.6 ml when baking demands precision.

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21 US gallon equals 168 cup.

Correct answer: 21 US gallon = 336 cup.

18.6 cup equals 1.16 US gallon.

Correct answer: 18.6 cup = 1.16 US gallon.

13.7 US gallon equals 219 cup.

Correct answer: 13.7 US gallon = 219 cup.

48 US gallon equals 1.15e+3 cup.

Correct answer: 48 US gallon = 768 cup.