Gallons to Cups Conversion
Enter the volume in gallons below to get the value converted to cups.
How to Convert Gallons to Cups
To convert a gallon measurement to a cup measurement, multiply the volume by the conversion ratio.
Since one gallon is equal to 16 cups, you can use this simple formula to convert:
The volume in cups is equal to the gallons multiplied by 16.

How Many Cups Are in a Gallon?
There are 16 cups in a gallon, which is why we use this value in the formula above.
1 gal = 16 c
Gallons and cups are both units used to measure volume. Keep reading to learn more about each unit of measure.
Gallons
The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.[1] 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.
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.[2]
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.
Gallon to Cup Conversion Table
Gallons | Cups |
---|---|
1 gal | 16 c |
2 gal | 32 c |
3 gal | 48 c |
4 gal | 64 c |
5 gal | 80 c |
6 gal | 96 c |
7 gal | 112 c |
8 gal | 128 c |
9 gal | 144 c |
10 gal | 160 c |
11 gal | 176 c |
12 gal | 192 c |
13 gal | 208 c |
14 gal | 224 c |
15 gal | 240 c |
16 gal | 256 c |
17 gal | 272 c |
18 gal | 288 c |
19 gal | 304 c |
20 gal | 320 c |
21 gal | 336 c |
22 gal | 352 c |
23 gal | 368 c |
24 gal | 384 c |
25 gal | 400 c |
26 gal | 416 c |
27 gal | 432 c |
28 gal | 448 c |
29 gal | 464 c |
30 gal | 480 c |
31 gal | 496 c |
32 gal | 512 c |
33 gal | 528 c |
34 gal | 544 c |
35 gal | 560 c |
36 gal | 576 c |
37 gal | 592 c |
38 gal | 608 c |
39 gal | 624 c |
40 gal | 640 c |
References
- 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
- 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
More Gallon & Cup Conversions
- gallons to quarts
- gallons to pints
- gallons to fluid ounces
- gallons to tablespoons
- gallons to teaspoons
- gallons to cubic inches
- gallons to cubic feet
- gallons to cubic yards
- gallons to liters
- gallons to milliliters
- gallons to cubic centimeters
- gallons to cubic meters
- quarts to cups
- pints to cups
- fluid ounces to cups
- tablespoons to cups
- teaspoons to cups
- cubic inches to cups
- cubic feet to cups
- cubic yards to cups
- liters to cups
- milliliters to cups
- cubic centimeters to cups
- cubic meters to cups