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Cups to Gallons Conversion

Enter the volume in cups below to get the value converted to gallons.

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1 c = 0.0625 gal
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How to Convert Cups to Gallons

conversion scale showing cups and equivalent gallons volume values
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To convert a cup measurement to a gallon measurement, divide the volume by the conversion ratio.

Since one gallon is equal to 16 cups, you can use this simple formula to convert:

gallons = cups ÷ 16

The volume in gallons is equal to the cups divided by 16.

For example, here's how to convert 5 cups to gallons using the formula above.
5 c = (5 ÷ 16) = 0.3125 gal

Cups and gallons are both units used to measure volume. Keep reading to learn more about each unit of measure.

Cups

The cup is a unit of volume equal to 16 tablespoons or 8 fluid ounces. The cup should not be confused with the metric cup or the teacup, which are different units of volume. One cup is equal to just under 236.6 milliliters, but in nutrition labeling, one cup is equal to 240 milliliters.[1]

The cup is a US customary unit of volume. Cups can be abbreviated as c, and are also sometimes abbreviated as C. For example, 1 cup can be written as 1 c or 1 C.

Gallons

The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.[2] The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.

The gallon is a US customary unit of volume. Gallons can be abbreviated as gal; for example, 1 gallon can be written as 1 gal.

Cup to Gallon Conversion Table

Cup measurements converted to gallons
Cups Gallons
1 c 0.0625 gal
2 c 0.125 gal
3 c 0.1875 gal
4 c 0.25 gal
5 c 0.3125 gal
6 c 0.375 gal
7 c 0.4375 gal
8 c 0.5 gal
9 c 0.5625 gal
10 c 0.625 gal
11 c 0.6875 gal
12 c 0.75 gal
13 c 0.8125 gal
14 c 0.875 gal
15 c 0.9375 gal
16 c 1 gal
17 c 1.0625 gal
18 c 1.125 gal
19 c 1.1875 gal
20 c 1.25 gal
21 c 1.3125 gal
22 c 1.375 gal
23 c 1.4375 gal
24 c 1.5 gal
25 c 1.5625 gal
26 c 1.625 gal
27 c 1.6875 gal
28 c 1.75 gal
29 c 1.8125 gal
30 c 1.875 gal
31 c 1.9375 gal
32 c 2 gal
33 c 2.0625 gal
34 c 2.125 gal
35 c 2.1875 gal
36 c 2.25 gal
37 c 2.3125 gal
38 c 2.375 gal
39 c 2.4375 gal
40 c 2.5 gal

References

  1. U.S. Food & Drug Administration, Guidance for Industry: Guidelines for Determining Metric Equivalents of Household Measures, https://www.fda.gov/regulatory-information/search-fda-guidance-documents/guidance-industry-guidelines-determining-metric-equivalents-household-measures
  2. National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf

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