Gallons to Quarts Converter
Type a value in gallons to see it in quarts as you type, with the exact formula and a reference chart.
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How this was calculated
- 1 gallon = 4 quarts
- 2 × 4 = 8 qt
| gal | qt |
|---|---|
| 0.25 gal | 1 qt |
| 0.5 gal | 2 qt |
| 0.75 gal | 3 qt |
| 1 gal | 4 qt |
| 1.5 gal | 6 qt |
| 2 gal | 8 qt |
| 2.5 gal | 10 qt |
| 3 gal | 12 qt |
| 4 gal | 16 qt |
| 5 gal | 20 qt |
| 10 gal | 40 qt |
| qt | 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 |
How to convert gallons to quarts
1 gallon = 4 quarts. To convert gallons to quarts, multiply by 4. A US liquid gallon is 231 cubic inches, exactly 3.785411784 L. A US liquid quart is a quarter of a gallon, about 946.4 ml.
Worked examples
- 0.5 gallons = 2 qt (0.5 × 4)
- 2 gallons = 8 qt (2 × 4)
- 5 gallons = 20 qt (5 × 4)
Where this conversion comes up
Gallons are used for gasoline, milk, paint and fish tanks in the US; quarts for motor oil, milk, stock and slow-cooker sizes. A gallon is exactly 4 quarts (and 8 pints, 16 cups). Handy for scaling recipes and buying milk or stock.
Quick estimate
Multiply by 4.
Common mistakes
- Dividing instead of multiplying. A quart is smaller than a gallon, so the number of quarts must come out larger: 0.5 gallons = 2 qt.
- Using the imperial (UK) unit. This page uses US measures. An imperial gallon is 4.546 L (20% more than a US gallon), an imperial pint 568 ml and an imperial fluid ounce 28.41 ml.
Going the other way? Use the quarts to gallons converter. Related volume converters: ml to oz, oz to ml, liters to gallons, gallons to liters, liters to quarts, quarts to liters.
Frequently asked questions
How do you convert gallons to quarts?
Multiply the gallons by 4. For example, 2 gallons is 8 quarts.
How many quarts are in one gallon?
One gallon is 4 quarts. A US liquid gallon is 231 cubic inches, exactly 3.785411784 L.
What is 5 gallons in quarts?
5 gallons is 20 quarts.
Is there a quick way to estimate gallons to quarts?
Multiply by 4.