Quarts to Gallons
Type US quarts (qt), see US gallons (gal).
By Akash Yadav Updated 19 October 2026
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The formula
How to convert quarts to gallons
To change quarts into gallons, divide by 4.
gallons = quarts ÷ 4
Going the other way: quarts = gallons × 4
1 US liquid quart = 0.25 gallons. This factor is the exact definition of the unit, not a rounded estimate.
Worked example
You have 6 quarts. Divide by 4. 6 ÷ 4 = 1.5 gal.
Common values
Quarts to gallons conversion table
| Quarts (qt) | Gallons (gal) |
|---|---|
| 1 qt | 0.25 gal |
| 2 qt | 0.5 gal |
| 3 qt | 0.75 gal |
| 4 qt | 1 gal |
| 5 qt | 1.25 gal |
| 6 qt | 1.5 gal |
| 8 qt | 2 gal |
| 10 qt | 2.5 gal |
| 12 qt | 3 gal |
| 16 qt | 4 gal |
| 20 qt | 5 gal |
| 24 qt | 6 gal |
| 32 qt | 8 gal |
| 40 qt | 10 gal |
Before you rely on it
US liquid quarts and gallons
This page uses US liquid units, the ones on milk jugs and paint cans in the United States. Exactly 4 US quarts fill 1 US gallon.
The UK Imperial gallon is bigger — about 4.55 liters against the US gallon’s 3.79 liters — so an Imperial quart-to-gallon count is still 4, but the containers themselves hold more.
The US dry quart is a separate unit used for produce. It is not what this page converts.
The whole US liquid family divides neatly: 1 gallon is 4 quarts, 1 quart is 2 pints and 1 pint is 2 cups. So a gallon is 8 pints or 16 cups, and "divide by 4" is exact every time — nothing on this page is rounded.
Common questions
Frequently asked questions
How many gallons is 6 quarts?
6 quarts is exactly 1.5 gallons — a common slow-cooker size.
How many gallons is 10 quarts?
10 quarts is exactly 2.5 gallons.
How many gallons is 20 quarts?
20 quarts is exactly 5 gallons — a large stock pot.
How many gallons is 8 quarts?
8 quarts is exactly 2 gallons.
Is a quart bigger than a gallon?
No — a gallon is the bigger unit. It takes 4 quarts to make 1 US gallon.
How many gallons is 1 quart?
1 quart is exactly 0.25 gallon — a quarter, which is where the name comes from.
Keep going
Related converters
- Gallons to Quarts gal → qt
- Gallons to Liters gal → L
- Liters to Gallons L → gal
- Pints to Cups pt → cup
- All volume converters
Read next
Guides that cover this conversion
Every factor on this page is listed in our conversion methodology.