Imperial Gallons to US Cups Converter
1 imperial gallon ≈ 19.2151988 US cups
US recipes may also use the "legal" cup of exactly 240 mL used on nutrition labels.
1 imperial gallon equals 19.2152 US cups
How to convert imperial 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 = imp gal × 19.21519881One imperial gallon is 19.21519881 US cups, so a single multiplication converts any value.
192.152 cup ≈ 10 × 19.21519881US recipes may also use the "legal" cup of exactly 240 mL used on nutrition labels.
Imperial gallons to US cups conversion table
Common values in imperial gallons, converted to US cups.
| Imperial gallons (imp gal) | US cups (cup) |
|---|---|
| 1 | 19.215199 |
| 2 | 38.430398 |
| 3 | 57.645596 |
| 4 | 76.860795 |
| 5 | 96.075994 |
| 10 | 192.15199 |
| 20 | 384.30398 |
| 25 | 480.37997 |
| 50 | 960.75994 |
| 100 | 1,921.5199 |
| 250 | 4,803.7997 |
| 500 | 9,607.5994 |
| 1,000 | 19,215.199 |
About these units
imperial gallonimp gal
The UK gallon: exactly 4.54609 litres.
Reference: UK Weights and Measures Act 1985.
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.