Quarts to Gallons Converter
Convert quarts to US gallons. Enter any number of quarts and get gallons, plus the same volume in pints, cups, and liters — all from the exact US liquid measure definitions.
Example: with Quarts 6 → US gallons: 1.5 gallons.
- In pints12 pints
- In cups24 cups
- In liters5.68 L
Computed by the calculator below using its default values. Change any input to see your own numbers.
gallons = quarts ÷ 4. The quart is literally a quarter gallon — the name says so.
A quart is a quarter gallon
The unit's name is the formula: quart comes from the Latin quartus, a fourth. Four quarts make a US gallon, so converting is a single division — 6 quarts is 1.5 gallons, 10 quarts is 2.5. Because the relationship is a definition, there is no rounding: 4 quarts is exactly 1 gallon of 3.785411784 liters.
Where people get burned is mixing systems. An imperial quart (still seen in older UK and Canadian recipes) is 1.1365 liters, about 20 percent bigger than the US quart's 0.9464 liters. And US dry quarts — used for berries and bulk produce — run 1.1012 liters. A recipe or motor-oil spec written in the US means the liquid quart this tool uses.
How it’s calculated
Gallons = quarts ÷ 4 (exact US definition). Pints = quarts × 2; cups = quarts × 4. Liters use 1 US liquid quart = 0.946352946 L, one quarter of the exact 3.785411784 L gallon.
US liquid measure only — imperial quarts are 1.1365 L and US dry quarts 1.1012 L, so cross-system conversions need different factors.
Quarts to gallons quick reference
| Quarts | Gallons | Also equals |
|---|---|---|
| 1 qt | 0.25 gal | 4 cups |
| 2 qt | 0.5 gal | half gallon |
| 4 qt | 1 gal | 16 cups |
| 6 qt | 1.5 gal | large stockpot |
| 8 qt | 2 gal | 32 cups |
| 12 qt | 3 gal | 48 cups |
| 16 qt | 4 gal | 64 cups |
US liquid measure: 4 quarts = 1 gallon exactly; cup equivalents follow from 4 cups per quart.
Common mistakes
- Multiplying by 4 instead of dividing — 6 quarts is 1.5 gallons, not 24.
- Treating imperial quarts as US quarts; the imperial unit is about 20 percent larger.
- Confusing dry quarts of produce with liquid quarts when scaling a canning recipe.
- Forgetting that a 6 qt slow cooker's working capacity is less than its rated volume.
Frequently asked questions
How many quarts are in a gallon?
Four. The formula is gallons = quarts ÷ 4, so 6 quarts is 1.5 gallons and 10 quarts is 2.5 gallons.
Is 2 quarts half a gallon?
Yes — 2 quarts is exactly half a US gallon, which is also 4 pints, 8 cups, or 64 fluid ounces. Half-gallon milk cartons are 2 quarts.
How many liters is a quart?
A US liquid quart is 0.946 liters, just under a liter. A 4-quart gallon is 3.785 liters, which is why a liter of milk looks slightly bigger than a quart.
Are US and UK quarts the same?
No. The imperial quart is 1.1365 liters versus 0.9464 for the US liquid quart — about 20 percent bigger. Older British and Canadian cookbooks mean the imperial one.