US quarts to US gallons
Multiply US quarts by 0.25 to get US gallons.
6 qt = 1.5 gal
How to convert US quarts to US gallons
The US gallon is the US liquid gallon, exactly 231 cubic inches (3.785411784 litres). The US quart is one quarter of a US gallon (0.946352946 litres).
Worked example — 6 qt: 6 × 0.25 = 1.5 gal.
US quarts to US gallons table
| US quarts | US gallons |
|---|---|
| 1 qt | 0.25 gal |
| 2 qt | 0.5 gal |
| 3 qt | 0.75 gal |
| 4 qt | 1 gal |
| 6 qt | 1.5 gal |
| 8 qt | 2 gal |
| 10 qt | 2.5 gal |
| 16 qt | 4 gal |
| 20 qt | 5 gal |
Reverse and related
About US quarts and US gallons
US quart (qt)
1 qt = 0.25 galDefinition. One quarter of a US gallon (0.946352946 litres)
History and origin
The quart is literally a quarter of a gallon, a division used in English measure for centuries. The US quart is one quarter of the US gallon, about 0.946 litres.
Current use
Quarts are used in the United States for milk, juice and cooking stock, and as a handy kitchen measure.
Source: NIST Handbook 44, Appendix C §2 (U.S. Customary Units) and §5 (Tables of Equivalents)
US gallon (gal)
1 gal = 4 qtDefinition. The US liquid gallon, exactly 231 cubic inches (3.785411784 litres)
History and origin
The US gallon derives from the old English wine gallon of 231 cubic inches, a value the United States kept when Britain moved to a larger imperial gallon in 1824. It equals exactly 3.785411784 litres.
Current use
The gallon is the everyday US unit for fuel, milk and paint; the imperial gallon used in the UK and Canada is about 20 percent larger.
Source: NIST Handbook 44, Appendix C §2 (U.S. Customary Units) and §5 (Tables of Equivalents)
Where people use this
US quarts: milk and juice, cooking stock. US gallons: fuel in the US, large containers, paint. 4 quarts is exactly 1 US gallon.
Every value is carried to full double precision; the display is rounded.
Both units are defined in NIST Handbook 44, Appendix C §2 (U.S. Customary Units) and §5 (Tables of Equivalents).
Questions people ask
How many gallons is 4 quarts?
4 US quarts is exactly 1 US gallon.
How many quarts in a gallon?
One US gallon is 4 quarts.
How many gallons is 2 quarts?
2 quarts is half a gallon (0.5 gal).