US Gallons to US Cups Converter
1 US gallon = 16 US cups
About 17% smaller than the imperial gallon used in the UK.
US recipes may also use the "legal" cup of exactly 240 mL used on nutrition labels.
1 US gallon equals 16 US cups
How to convert US gallons to US cups
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.
cup = gal × 16One US gallon is 16 US cups, so a single multiplication converts any value.
160 cup = 10 × 16About 17% smaller than the imperial gallon used in the UK.
US recipes may also use the "legal" cup of exactly 240 mL used on nutrition labels.
US gallons to US cups conversion table
Common values in US gallons, converted to US cups.
| US gallons (gal) | US cups (cup) |
|---|---|
| 1 | 16 |
| 2 | 32 |
| 3 | 48 |
| 4 | 64 |
| 5 | 80 |
| 10 | 160 |
| 20 | 320 |
| 25 | 400 |
| 50 | 800 |
| 100 | 1,600 |
| 250 | 4,000 |
| 500 | 8,000 |
| 1,000 | 16,000 |
About these units
US gallongal
The US liquid gallon: exactly 231 cubic inches, or 3.785411784 litres.
US cupcup
The US customary cup: 8 US fluid ounces, about 236.6 mL.
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.