Quarts to Gallons Converter
Convert US quarts (qt) to US gallons (gal) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
Quarts to Gallons formula
gal = qt ÷ 4
1 US quart = 0.25 US gallons · 1 US gallon = 4 US quarts
To convert US quarts to US gallons, divide the value by 4. For example, 6 qt:
gal = 6 ÷ 4gal = 1.5
So 6 qt = 1.5 gal.
Mental math shortcut
This conversion is exact, so there is no need to estimate: just divide by 4.
Quarts to Gallons conversion table
Gallons back to Quarts
The same values converted the other way, rounded for everyday use:
| US gallons | US quarts |
|---|---|
| 0.25 gal | 1 qt |
| 0.5 gal | 2 qt |
| 0.75 gal | 3 qt |
| 1 gal | 4 qt |
| 1.25 gal | 5 qt |
| 1.5 gal | 6 qt |
| 2 gal | 8 qt |
| 3 gal | 12 qt |
About the units
US quarts (qt)
A US liquid quart is 2 pints or 4 cups, about 946 ml.
US gallons (gal)
A US gallon is 128 US fluid ounces, exactly 3.785411784 liters. (The UK imperial gallon is 4.546 liters.)
Frequently asked questions
How many US gallons are in a US quart?
One US quart equals 0.25 US gallons.
What is 6 Quarts in Gallons?
6 qt = 1.5 gal.
How do I convert Gallons back to Quarts?
Multiply the US gallons by 4.