Imperial Gallons to US Quarts Converter
1 imperial gallon ≈ 4.8037997 US quarts
1 imperial gallon equals 4.8038 US quarts
How to convert imperial gallons to US quarts
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.
qt = imp gal × 4.803799702One imperial gallon is 4.803799702 US quarts, so a single multiplication converts any value.
48.038 qt ≈ 10 × 4.803799702Imperial gallons to US quarts conversion table
Common values in imperial gallons, converted to US quarts.
| Imperial gallons (imp gal) | US quarts (qt) |
|---|---|
| 1 | 4.8037997 |
| 2 | 9.6075994 |
| 3 | 14.411399 |
| 4 | 19.215199 |
| 5 | 24.018999 |
| 10 | 48.037997 |
| 20 | 96.075994 |
| 25 | 120.09499 |
| 50 | 240.18999 |
| 100 | 480.37997 |
| 250 | 1,200.9499 |
| 500 | 2,401.8999 |
| 1,000 | 4,803.7997 |
About these units
imperial gallonimp gal
The UK gallon: exactly 4.54609 litres.
Reference: UK Weights and Measures Act 1985.
US quartqt
One quarter of a US gallon, or 2 US pints.
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.