Quarts to Ounces Calculator
Converting quarts to weight ounces requires knowing the ingredient density — because a quart of water and a quart of flour weigh very different amounts in ounces. This calculator handles 15+ substances with preset densities, or enter your own custom density. Get weight in ounces from any quart measurement.
- Density Presets
- Custom Density
- Weight Ounces
- Nutrition Ready
Quarts to Ounces Calculator
1.00 g/mL1 qt × 1.0 g/mL × 33.382 = 33.382 oz
- Density
- 1.0 g/mL
- Equivalent
- 1 oz = 0.029956 qt
Ounces and Quarts
Everything you need to know about converting quarts to ounces.
Weight Ounces vs Fluid Ounces
This calculator converts to weight ounces (oz), not fluid ounces (fl oz). A weight ounce is a unit of mass equal to 28.3495 grams. A fluid ounce is a unit of volume equal to 29.574 milliliters. They share a name but measure different things.
For water at room temperature, 1 fluid ounce happens to weigh close to 1 weight ounce. But for other substances, the numbers diverge. 1 fluid ounce of honey weighs about 1.42 weight ounces. 1 fluid ounce of flour weighs about 0.53 weight ounces.
Why Density Matters
A quart of water weighs 33.38 ounces, but a quart of flour weighs only 17.69 ounces. The difference is density — how much mass fits in the same volume. Water is denser than flour, so the same volume weighs more.
Shipping, nutrition labels, and commercial recipes all need weight in ounces. The USDA nutrient database lists serving sizes in weight ounces. Amazon and UPS calculate shipping costs by weight. Converting volume (quarts) to weight (ounces) requires the density factor.
Quarts to Ounces Formula
1 quart = 946.353 mL. Weight in grams = 946.353 × density (g/mL). Then convert grams to ounces by dividing by 28.3495. So: ounces = quarts × density × (946.353 ÷ 28.3495) = quarts × density × 33.382.
Drag the slider to see the formula in action.
Quarts → Ounces
1 quart = 946.353 mL. Weight in grams = 946.353 × density (g/mL). Then convert grams to ounces by dividing by 28.3495. So: ounces = quarts × density × (946.353 ÷ 28.3495) = quarts × density × 33.382.
Ounces → Quarts
To go from weight ounces back to quarts, divide ounces by the product of density and 33.382. For water (density 1.0): quarts = ounces ÷ 33.382.
Quarts to Ounces Conversion Table
Common ingredients at standard density values
| Quarts | Water | Flour | Sugar | Milk | Honey |
|---|---|---|---|---|---|
| 1 qt | 33.382 oz | 17.6925 oz | 28.3747 oz | 34.3835 oz | 47.4024 oz |
| 2 qt | 66.764 oz | 35.3849 oz | 56.7494 oz | 68.7669 oz | 94.8049 oz |
| 3 qt | 100.146 oz | 53.0774 oz | 85.1241 oz | 103.1504 oz | 142.2073 oz |
| 4 qt | 133.528 oz | 70.7698 oz | 113.4988 oz | 137.5338 oz | 189.6098 oz |
| 5 qt | 166.91 oz | 88.4623 oz | 141.8735 oz | 171.9173 oz | 237.0122 oz |
| 6 qt | 200.292 oz | 106.1548 oz | 170.2482 oz | 206.3008 oz | 284.4146 oz |
| 7 qt | 233.674 oz | 123.8472 oz | 198.6229 oz | 240.6842 oz | 331.8171 oz |
| 8 qt | 267.056 oz | 141.5397 oz | 226.9976 oz | 275.0677 oz | 379.2195 oz |
| 9 qt | 300.438 oz | 159.2321 oz | 255.3723 oz | 309.4511 oz | 426.622 oz |
| 10 qt | 333.82 oz | 176.9246 oz | 283.747 oz | 343.8346 oz | 474.0244 oz |
Frequently Asked Questions
How many ounces are in 1 quart?
It depends on the substance. 1 quart of water weighs 33.38 ounces. 1 quart of flour weighs 17.69 ounces. 1 quart of honey weighs 47.40 ounces. The conversion requires knowing the ingredient's density.
How many weight ounces in a quart of water?
A quart of water weighs 33.38 ounces (about 2.09 pounds). Water has a density of 1.0 g/mL, and 1 quart = 946.353 mL = 946.353 g = 33.38 oz.
What's the difference between fluid ounces and weight ounces?
Fluid ounces (fl oz) measure volume — there are always 32 fl oz in a quart regardless of substance. Weight ounces (oz) measure mass. The weight of a quart in ounces depends on what substance fills it.
How many ounces in a quart of milk?
A quart of milk weighs about 34.38 ounces (33.382 × 1.03 density). Milk is slightly denser than water due to its fat, protein, and sugar content.
How many ounces in a quart of flour?
A quart of all-purpose flour weighs about 17.69 ounces (33.382 × 0.53 density). Flour is much lighter than water per unit volume because of the air trapped between the particles.
Does temperature affect the conversion?
Yes. Temperature changes density. Hot water is slightly less dense than cold water. For most kitchen purposes, room-temperature values are accurate enough. For scientific work, use the density at the specific temperature.
How do I convert ounces to quarts?
Divide weight ounces by (density × 33.382). For water: quarts = ounces ÷ 33.382. For flour: quarts = ounces ÷ 17.69.
Convert Quarts to Ounces Instantly
Use this free quarts to ounces calculator for cooking, baking, science, and everyday conversions. Enter any quart value and get the ounces equivalent instantly.
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