How to convert US cups to US gallons
gal = cup × 0.0625Multiply the value in US cups by 0.0625. To go the other way, multiply by 16 (or divide by 0.0625).
An US cup is smaller than an US gallon: it takes 16 US cups to make one US gallon.
Worked examples
- 1 US cup1 cup × 0.0625 = 0.0625 gal
- 5 US cups5 cup × 0.0625 = 0.3125 gal
- 10 US cups10 cup × 0.0625 = 0.625 gal
- 20 US cups20 cup × 0.0625 = 1.25 gal
- 100 US cups100 cup × 0.0625 = 6.25 gal
US cups to US gallons conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| US cups (cup) | US gallons (gal) |
|---|---|
| 0.1 cup | 0.00625 gal |
| 0.25 cup | 0.015625 gal |
| 0.5 cup | 0.03125 gal |
| 1 cup | 0.0625 gal |
| 2 cup | 0.125 gal |
| 3 cup | 0.1875 gal |
| 4 cup | 0.25 gal |
| 5 cup | 0.3125 gal |
| 6 cup | 0.375 gal |
| 7 cup | 0.4375 gal |
| 8 cup | 0.5 gal |
| 9 cup | 0.5625 gal |
| 10 cup | 0.625 gal |
| US cups (cup) | US gallons (gal) |
|---|---|
| 12 cup | 0.75 gal |
| 15 cup | 0.9375 gal |
| 20 cup | 1.25 gal |
| 25 cup | 1.5625 gal |
| 30 cup | 1.875 gal |
| 40 cup | 2.5 gal |
| 50 cup | 3.125 gal |
| 75 cup | 4.6875 gal |
| 100 cup | 6.25 gal |
| 250 cup | 15.625 gal |
| 500 cup | 31.25 gal |
| 1,000 cup | 62.5 gal |
About the units
US cup (cup)
The US customary cup is half a US pint, 236.5882365 mL (8 US fl oz). US nutrition labels instead use a “legal cup” of exactly 240 mL. One US cup equals 0.0002365882365 cubic meters (m³).
US gallon (gal)
Defined as 231 cubic inches, exactly 3.785411784 L. US fuel, milk and paint are sold by the gallon. Four quarts or 128 US fluid ounces. One US gallon equals 0.003785411784 cubic meters (m³).
Frequently asked questions
How many US gallons are in one US cup?
There are 0.0625 US gallons in one US cup, and this value is exact by definition.
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.
How many US cups are in one US gallon?
One US gallon equals 16 US cups. That is the reverse factor, 1 ÷ 0.0625.
What is 10 US cups in US gallons?
10 cup = 0.625 gal.
Is this cup to gal converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.