Convert Imperial gallons to US quarts
1 imperial gallon = 4.8038 US quarts · qt = imp gal × 4.803799702
When you need this conversion
This conversion goes from imperial gallons, the UK volume unit about 20 percent larger than a US gallon, to US quarts, a quarter gallon used for milk, oil, and stock. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
Imperial gallons to US quarts conversion table
| Imperial gallons (imp gal) | US quarts (qt) |
|---|---|
| 1 imp gal | 4.8038 qt |
| 2 imp gal | 9.6076 qt |
| 3 imp gal | 14.4114 qt |
| 5 imp gal | 24.019 qt |
| 10 imp gal | 48.038 qt |
| 15 imp gal | 72.057 qt |
| 20 imp gal | 96.076 qt |
| 25 imp gal | 120.09 qt |
| 50 imp gal | 240.19 qt |
| 75 imp gal | 360.28 qt |
| 100 imp gal | 480.38 qt |
| 250 imp gal | 1,200.95 qt |
| 500 imp gal | 2,401.9 qt |
| 1,000 imp gal | 4,803.8 qt |
The formula
qt = imp gal × 4.803799702Because both units measure volume, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
US quarts to imperial gallons →Related volume conversions
- Milliliters to US cups
- Milliliters to US fluid ounces
- Liters to cubic meters
- Liters to US gallons
- Cubic meters to liters
- Cubic meters to cubic feet
- Cubic feet to cubic meters
- US gallons to liters
- US cups to milliliters
- US fluid ounces to milliliters
- Milliliters to US quarts
- Liters to US quarts
Frequently asked questions
- How many US quarts are in a imperial gallon?
- There are 4.8038 US quarts in 1 imperial gallon. The formula is qt = imp gal × 4.803799702.
- How do you convert imperial gallons to US quarts?
- Use the formula qt = imp gal × 4.803799702. For example, 10 imperial gallons equals 48.038 US quarts.
- Is the imperial gallons to US quarts conversion exact?
- Yes. Imperial gallons and US quarts are both units of volume, related by an exact defined factor. Displayed results are rounded for readability.
- What is imp gal short for?
- imp gal is the standard symbol for imperial gallon. qt is the symbol for US quart.