Ounces to Quarts Conversion Calculator
Enter the weight in ounces below to calculate the volume in quarts.
Result: Quarts
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How to Convert Ounces to Quarts
Since ounces are a unit of mass and quarts are a unit of volume, which are different physical quantities, we need to know one more physical quantity of the ingredient or substance to convert between them. In this case, we need to account for the density of the substance whenever we do a conversion.
Therefore, to convert between ounces and quarts of an ingredient or substance, we must either multiply or divide by its density, depending on which direction we are performing the conversion.
Ounces to Quarts Formula
To convert a measurement in ounces to quarts, divide the weight by the density of the ingredient or material. Note that in order for this to work, the density must be in ounces per quart (oz/qt).
If the density is given in grams per milliliter (g/mL), then first multiply the density by 33.3816 to convert to oz/qt.
For a density given in g/mL, you can use this simple formula to convert:
quarts = ounces / 33.3816 × density
Thus, the volume in quarts is equal to the weight in ounces divided by 33.3816 times the density (in g/mL) of the ingredient, substance, or material.
For example, here's how to convert 5 ounces to quarts for an ingredient with a density of 0.7 g/mL.
quarts = 5 oz / 33.3816 × 0.7 g/mL = 0.214 qt
This formula is for converting ounces in weight, if you're trying to convert a volume measurement in fluid ounces, try our fluid ounces to quarts calculator.
Ounce to Quart Conversion Table
| Weight in Ounces: | Volume in Quarts of: | ||||
|---|---|---|---|---|---|
| Water | Milk | Cooking Oil | All Purpose Flour | Granulated Sugar | |
| 1 oz | 0.03 qt | 0.029 qt | 0.034 qt | 0.057 qt | 0.035 qt |
| 2 oz | 0.06 qt | 0.058 qt | 0.068 qt | 0.113 qt | 0.071 qt |
| 3 oz | 0.09 qt | 0.087 qt | 0.102 qt | 0.17 qt | 0.106 qt |
| 4 oz | 0.12 qt | 0.116 qt | 0.136 qt | 0.227 qt | 0.142 qt |
| 5 oz | 0.15 qt | 0.145 qt | 0.17 qt | 0.283 qt | 0.177 qt |
| 6 oz | 0.18 qt | 0.175 qt | 0.204 qt | 0.34 qt | 0.213 qt |
| 7 oz | 0.21 qt | 0.204 qt | 0.238 qt | 0.396 qt | 0.248 qt |
| 8 oz | 0.24 qt | 0.233 qt | 0.272 qt | 0.453 qt | 0.283 qt |
| 9 oz | 0.27 qt | 0.262 qt | 0.306 qt | 0.51 qt | 0.319 qt |
| 10 oz | 0.3 qt | 0.291 qt | 0.34 qt | 0.566 qt | 0.354 qt |
| 11 oz | 0.33 qt | 0.32 qt | 0.374 qt | 0.623 qt | 0.39 qt |
| 12 oz | 0.359 qt | 0.349 qt | 0.408 qt | 0.68 qt | 0.425 qt |
| 13 oz | 0.389 qt | 0.378 qt | 0.443 qt | 0.736 qt | 0.461 qt |
| 14 oz | 0.419 qt | 0.407 qt | 0.477 qt | 0.793 qt | 0.496 qt |
| 15 oz | 0.449 qt | 0.436 qt | 0.511 qt | 0.849 qt | 0.532 qt |
| 16 oz | 0.479 qt | 0.465 qt | 0.545 qt | 0.906 qt | 0.567 qt |
| 17 oz | 0.509 qt | 0.494 qt | 0.579 qt | 0.963 qt | 0.602 qt |
| 18 oz | 0.539 qt | 0.524 qt | 0.613 qt | 1.019 qt | 0.638 qt |
| 19 oz | 0.569 qt | 0.553 qt | 0.647 qt | 1.076 qt | 0.673 qt |
| 20 oz | 0.599 qt | 0.582 qt | 0.681 qt | 1.133 qt | 0.709 qt |
When to Convert Ounces to Quarts
Ounces and quarts are both commonly used to measure cooking ingredients.
For cooking applications, most chefs suggest measuring dry ingredients by weight rather than volume to improve accuracy in the measurements.[1] The density of dry ingredients can vary for a variety of reasons, such as compaction and clumping.
The best way to ensure an accurate conversion is to use a scale. When a scale is not available, a calculator like the one above is a good way to estimate the weight to volume conversion.
Another useful application of weight and volume conversions is chemistry. When performing chemical reactions by combining separate chemicals to produce a new chemical, one must know the exact amount of each chemical to add in order to maximize the yield of the reaction.
It is common to mix powdered chemicals with liquid, or aqueous, chemicals, and this is where it becomes very useful to convert between weights and volumes.[2]
Keep reading to learn more about each unit of measure.
What Is an Ounce?
One ounce is a unit of mass/weight equal to 1/16 of a pound or 28.349523 grams. The common ounce should not be confused with the troy ounce, which is equal to 1/12 of a troy pound.[3]
The ounce is a US customary and imperial unit of mass. Ounces can be abbreviated as oz; for example, 1 ounce can be written as 1 oz.
An ounce is frequently referred to as a unit of weight. While technically, an ounce is a measure of mass, and weight is actually a measure of force, the two are equivalent as long as we are performing our calculations on Earth.
For example, an object with a mass of 1 ounce weighs 1 ounce on Earth, but only weighs one-sixth of that on the moon, yet still has the same mass.
Learn more about ounces.
What Is a Quart?
The US liquid quart is a unit of fluid volume equal to one fourth of a gallon, two pints, or four cups.
The liquid quart should not be confused with the dry quart (US) or the imperial quart, which are different units. However, when someone refers to a volume in quarts, they typically mean the US liquid quart.
The quart is a US customary unit of volume. Quarts can be abbreviated as qt; for example, 1 quart can be written as 1 qt.
Learn more about quarts.
References
- National Institute of Standards & Technology, Culinary Measurement Tips, https://www.nist.gov/pml/owm/culinary-measurement-tips
- CK-12 Foundation, Introductory Chemistry (CK-12) - 12.6: Mass-Volume Stoichiometry, https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/12%3A_Stoichiometry/12.06%3A_Mass-Volume_Stoichiometry
- James Bucki, Troy Ounce vs. Ounce, The Spruce, https://www.thesprucecrafts.com/troy-ounce-vs-ounce-4588158