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US Cups to US Gallons (cup to gal) Converter

1 US cup (cup) = 0.0625 US gallons (gal). To convert US cups to US gallons, multiply by 0.0625: 2 cup × 0.0625 = 0.125 gal.

1 cup = 0.0625 gal
Convert the other way: US Gallons to US Cups

Quick facts

How to convert US cups to US gallons

  1. Take the value in US cups.
  2. Multiply it by 0.0625 (the number of US gallons in one US cup).
  3. Round the result to the precision you need.
gal = cup × 0.0625

Worked example (a recipe): 2 cup × 0.0625 = 0.125 gal.

To convert US gallons back to US cups, multiply by 16, or divide by 0.0625.

Source: NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units).

US Cups to US Gallons conversion table

US Cups to US Gallons conversion table
US Cups [cup]US Gallons [gal]
0.01 cup0.000625 gal
0.1 cup0.00625 gal
1 cup0.0625 gal
2 cup0.125 gal
3 cup0.1875 gal
5 cup0.3125 gal
10 cup0.625 gal
20 cup1.25 gal
50 cup3.125 gal
100 cup6.25 gal
1000 cup62.5 gal

cup to gal chart from 1 to 100

US Gallons to US Cups conversion table

US Gallons to US Cups conversion table
US Gallons [gal]US Cups [cup]
0.01 gal0.16 cup
0.1 gal1.6 cup
1 gal16 cup
2 gal32 cup
3 gal48 cup
5 gal80 cup
10 gal160 cup
20 gal320 cup
50 gal800 cup
100 gal1600 cup
1000 gal16000 cup

US Cups vs US Gallons

US CupUS Gallon
Symbolcupgal
Equals1 cup = 0.0625 gal1 gal = 16 cup

What is a US cup?

A US customary cooking measure equal to 8 fluid ounces. The standard recipe measure for liquids and dry ingredients in the US.

What is a US gallon?

A US customary unit equal to 4 quarts. Used in the US for fuel, milk, and paint.

Frequently asked questions

How many US gallons are in a US cup?

There are 0.0625 US gallons in 1 US cup (1 cup = 0.0625 gal).

How many US cups are in a US gallon?

There are 16 US cups in 1 US gallon (1 gal = 16 cup).

How do I convert US cups to US gallons?

Multiply the number of US cups by 0.0625. For example, 10 cup × 0.0625 = 0.625 gal. To convert back, multiply by 16.

What is 10 cup in US gallons?

10 cup = 0.625 gal.

What is 100 cup in US gallons?

100 cup = 6.25 gal.

Is the conversion exact?

Yes. The factor comes from the official definitions of both units (NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units)). Results are shown to up to 10 decimal places; round them to suit your purpose.

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.

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First published 28 October 2026 · Last reviewed 5 November 2026