Convert US quarts to fluid ounces instantly. Exact integer conversion, free, no sign-up required.
Quick Answer: One US liquid quart equals exactly 32 fluid ounces. Multiply any quart value by 32. Common values: 0.5 qt = 16 fl oz · 1 qt = 32 fl oz · 2 qt = 64 fl oz · 4 qt = 128 fl oz · 6 qt = 192 fl oz.
Formula: fl oz = quarts × 32
Fluid Ounces = Quarts × 32
Quarts = Fluid Ounces ÷ 32
The US liquid quart is defined as exactly 1/4 of a US gallon. Since 1 gallon = 128 fl oz, one quarter of that is exactly 32 fl oz per quart. No approximation, no decimal factor — just clean multiplication by 32.
| Quarts (qt) | Fluid Ounces (fl oz) | Cups | Common Reference |
|---|---|---|---|
| 0.125 qt | 4 fl oz | ½ cup | small glass |
| 0.25 qt | 8 fl oz | 1 cup | 1 cup / coffee mug |
| 0.5 qt | 16 fl oz | 2 cups | 1 pint / standard bottle |
| 0.75 qt | 24 fl oz | 3 cups | sport bottle |
| 1 qt | 32 fl oz | 4 cups | 1-qt mason jar / broth carton |
| 1.5 qt | 48 fl oz | 6 cups | — |
| 2 qt | 64 fl oz | 8 cups | half-gallon / 2-qt carton |
| 3 qt | 96 fl oz | 12 cups | 3/4 gallon |
| 4 qt | 128 fl oz | 16 cups | 1 gallon |
| 5 qt | 160 fl oz | 20 cups | 5-qt Dutch oven |
| 6 qt | 192 fl oz | 24 cups | 6-qt Instant Pot |
| 8 qt | 256 fl oz | 32 cups | 2 gallons / large stock pot |
| 10 qt | 320 fl oz | 40 cups | 2.5 gallons |
| 20 qt | 640 fl oz | 80 cups | 5 gallons |
Cooking vessels are sized and labeled in quarts. Knowing the fluid ounce capacity helps when a recipe specifies liquid volumes in oz but your pot is labeled in quarts — or vice versa.
| Cookware / Appliance | Quart Size | Fluid Ounces | Approx. Gallons |
|---|---|---|---|
| Small saucepan | 1–2 qt | 32–64 fl oz | 0.25–0.5 gal |
| Medium saucepan | 3 qt | 96 fl oz | 0.75 gal |
| Dutch oven (standard) | 5–6 qt | 160–192 fl oz | 1.25–1.5 gal |
| Instant Pot (6 qt) | 6 qt | 192 fl oz | 1.5 gal |
| Instant Pot (8 qt) | 8 qt | 256 fl oz | 2 gal |
| Large stock pot | 12 qt | 384 fl oz | 3 gal |
| Lobster / canning pot | 20 qt | 640 fl oz | 5 gal |
Recipe scaling tip: When scaling a recipe that fills a 6-qt pot, you know you need 192 fl oz of total liquid. Broth cartons sold in 32 oz (1 qt) and 64 oz (2 qt) sizes make it easy to count cartons: 3 × 64 oz cartons = 192 fl oz = 6 quarts exactly.
Recipes and product labels often use decimal or fractional quart values. These are the most commonly referenced conversions:
| Quarts | fl oz | Cups | Equivalent to |
|---|---|---|---|
| ⅛ qt (0.125) | 4 fl oz | ½ cup | — |
| ¼ qt (0.25) | 8 fl oz | 1 cup | 1 US cup |
| ½ qt (0.5) | 16 fl oz | 2 cups | 1 pint |
| ¾ qt (0.75) | 24 fl oz | 3 cups | — |
| 1 qt (1.0) | 32 fl oz | 4 cups | 1 quart |
| 1¼ qt (1.25) | 40 fl oz | 5 cups | — |
| 1½ qt (1.5) | 48 fl oz | 6 cups | — |
| 1¾ qt (1.75) | 56 fl oz | 7 cups | — |
The quart is the most frequently used unit for mid-range liquid volumes in US commercial and home cooking. Its position in the hierarchy:
For the full measurement hierarchy from teaspoons to gallons, see our liquid measurement conversion chart.
A quart (946 ml) and a liter (1000 ml) are close but not equal. Here is what that 54 ml difference means in practice:
All US customary unit definitions follow the standards set by the National Institute of Standards and Technology (NIST).
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