1 Imperial gallon to US quarts
1 imp gal = 4.8038 qt. Change the amount below, or read the formula and the reference table further down.
1 Imperial gallon equals
US quarts
1 imp gal = 4.8038 qt
The formula
Imperial gallons and US quarts both measure volume from the same zero, so a single multiplier does the job.
qt = imp gal × 4.8037997
Going the other way? Convert US quarts to Imperial gallons.
Imperial gallons to US quarts table
Values either side of 1 imp gal.
| Imperial gallons (imp gal) | US quarts (qt) |
|---|---|
| -4 | -19.2152 |
| -3.5 | -16.8133 |
| -3 | -14.4114 |
| -2.5 | -12.0095 |
| -2 | -9.6076 |
| -1.5 | -7.2057 |
| -1 | -4.8038 |
| -0.5 | -2.4019 |
| 0 | 0 |
| 0.5 | 2.4019 |
| 1 | 4.8038 |
| 1.5 | 7.2057 |
| 2 | 9.6076 |
| 2.5 | 12.0095 |
| 3 | 14.4114 |
| 3.5 | 16.8133 |
| 4 | 19.2152 |
| 4.5 | 21.6171 |
| 5 | 24.019 |
| 5.5 | 26.4209 |
| 6 | 28.8228 |
Questions people ask
- How many US quarts are in a Imperial gallon?
- One Imperial gallon equals 4.8037997 US quarts.
- How do I convert Imperial gallons to US quarts by hand?
- Multiply the number of Imperial gallons by 4.8037997. For a rough check, 4.8 is close enough for most everyday use.
- What is 1 Imperial gallon in US quarts?
- 1 Imperial gallon is 4.8038 US quarts.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.