Convert Imperial gallons 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
Common values, rounded for reading.
| Imperial gallons (imp gal) | US quarts (qt) |
|---|---|
| 1 | 4.8038 |
| 2 | 9.6076 |
| 3 | 14.4114 |
| 4 | 19.2152 |
| 5 | 24.019 |
| 6 | 28.8228 |
| 7 | 33.6266 |
| 8 | 38.4304 |
| 9 | 43.2342 |
| 10 | 48.038 |
| 15 | 72.057 |
| 20 | 96.076 |
| 25 | 120.09 |
| 30 | 144.11 |
| 40 | 192.15 |
| 50 | 240.19 |
| 75 | 360.28 |
| 100 | 480.38 |
| 250 | 1,200.95 |
| 500 | 2,401.9 |
| 1,000 | 4,803.8 |
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.