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Convert cups to gallons (cup to gal)

Type a value in cups or in gallons: the other field updates as you type. Below you will find the formula, a worked example and a cup to gal chart.

Updated on

1 cup = 0.0625 gal

How to convert cups to gallons

Formula: gal = cup ÷ 16

Worked example: 2 cup → 2 ÷ 16 = 0.125 gal

Cups to gallons conversion chart

Cups (cup)Gallons (gal)
0.25 cup0.015625 gal
0.5 cup0.03125 gal
0.75 cup0.046875 gal
1 cup0.0625 gal
1.25 cup0.078125 gal
1.5 cup0.09375 gal
2 cup0.125 gal
2.5 cup0.15625 gal
3 cup0.1875 gal
4 cup0.25 gal
5 cup0.3125 gal
6 cup0.375 gal
8 cup0.5 gal
10 cup0.625 gal
12 cup0.75 gal
16 cup1 gal

What is a cup?

The US customary cup holds 8 fluid ounces, about 236.6 ml. Nutrition labels use a rounded 240 ml cup, and Canada and Australia use a 250 ml metric cup. In baking, measure dry ingredients level, or better, weigh them.

What is a gallon?

The US gallon is defined as 231 cubic inches, exactly 3.785411784 liters, and holds 4 quarts or 128 fluid ounces. Gasoline, milk, paint and water use in the United States are measured in gallons.

Frequently asked questions

How many gallons are in a cup?

A cup equals 0.0625 gallons. To convert any value, multiply the number of cups by 0.0625.

How do you convert cups to gallons?

Use the formula gal = cup ÷ 16. Example: 2 cup → 2 ÷ 16 = 0.125 gal.

How many cups are in a gallon?

A gallon equals 16 cups. That is the reverse conversion, from gallons to cups.

Results are rounded to 6 significant digits; the conversion factors are the exact legal definitions.