US Cups to US Gallons Converter
1 US cup = 0.0625 US gallons
US recipes may also use the "legal" cup of exactly 240 mL used on nutrition labels.
About 17% smaller than the imperial gallon used in the UK.
1 US cup equals 0.0625 US gallons
How to convert US cups to US gallons
Choose the named US, Imperial or metric unit before converting a recipe or container size. A US liquid gallon is 3.785411784 L; an Imperial gallon is 4.54609 L. Volume alone cannot give ingredient mass without density.
gal = cup × 1/16One US cup is 1/16 US gallons, so a single multiplication converts any value.
0.625 gal = 10 × 1/16US recipes may also use the "legal" cup of exactly 240 mL used on nutrition labels.
About 17% smaller than the imperial gallon used in the UK.
US cups to US gallons conversion table
Common values in US cups, converted to US gallons.
| US cups (cup) | US gallons (gal) |
|---|---|
| 1 | 0.0625 |
| 2 | 0.125 |
| 3 | 0.1875 |
| 4 | 0.25 |
| 5 | 0.3125 |
| 10 | 0.625 |
| 20 | 1.25 |
| 25 | 1.5625 |
| 50 | 3.125 |
| 100 | 6.25 |
| 250 | 15.625 |
| 500 | 31.25 |
| 1,000 | 62.5 |
About these units
US cupcup
The US customary cup: 8 US fluid ounces, about 236.6 mL.
US gallongal
The US liquid gallon: exactly 231 cubic inches, or 3.785411784 litres.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.