Pounds to Quarts Conversion Calculator
Enter the weight in pounds below to calculate the volume in quarts.
Result: Quarts
Do you want to convert quarts to pounds?
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How to Convert Pounds to Quarts
Since pounds 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 pounds 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.
Pounds to Quarts Formula
To convert a measurement in pounds 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 pounds per quart (lb/qt).
If the density is given in grams per milliliter (g/mL), then first multiply the density by 2.0864 to convert to lb/qt.
For a density given in g/mL, you can use this simple formula to convert:
quarts = pounds / 2.0864 × density
Thus, the volume in quarts is equal to the weight in pounds divided by 2.0864 times the density (in g/mL) of the ingredient, substance, or material.
For example, here's how to convert 5 pounds to quarts for an ingredient with a density of 0.7 g/mL.
quarts = 5 lb / 2.0864 × 0.7 g/mL = 3.4236 qt
Pound to Quart Conversion Table
| Weight in Pounds: | Volume in Quarts of: | ||||
|---|---|---|---|---|---|
| Water | Milk | Cooking Oil | Gasoline | Diesel | |
| 1 lb | 0.479 qt | 0.465 qt | 0.545 qt | 0.648 qt | 0.564 qt |
| 2 lb | 0.959 qt | 0.931 qt | 1.089 qt | 1.295 qt | 1.128 qt |
| 3 lb | 1.438 qt | 1.396 qt | 1.634 qt | 1.943 qt | 1.692 qt |
| 4 lb | 1.917 qt | 1.861 qt | 2.179 qt | 2.591 qt | 2.256 qt |
| 5 lb | 2.397 qt | 2.327 qt | 2.723 qt | 3.239 qt | 2.819 qt |
| 6 lb | 2.876 qt | 2.792 qt | 3.268 qt | 3.886 qt | 3.383 qt |
| 7 lb | 3.355 qt | 3.257 qt | 3.813 qt | 4.534 qt | 3.947 qt |
| 8 lb | 3.834 qt | 3.723 qt | 4.357 qt | 5.182 qt | 4.511 qt |
| 9 lb | 4.314 qt | 4.188 qt | 4.902 qt | 5.829 qt | 5.075 qt |
| 10 lb | 4.793 qt | 4.653 qt | 5.447 qt | 6.477 qt | 5.639 qt |
| 11 lb | 5.272 qt | 5.119 qt | 5.991 qt | 7.125 qt | 6.203 qt |
| 12 lb | 5.752 qt | 5.584 qt | 6.536 qt | 7.773 qt | 6.767 qt |
| 13 lb | 6.231 qt | 6.049 qt | 7.081 qt | 8.42 qt | 7.331 qt |
| 14 lb | 6.71 qt | 6.515 qt | 7.625 qt | 9.068 qt | 7.894 qt |
| 15 lb | 7.19 qt | 6.98 qt | 8.17 qt | 9.716 qt | 8.458 qt |
| 16 lb | 7.669 qt | 7.446 qt | 8.715 qt | 10.36 qt | 9.022 qt |
| 17 lb | 8.148 qt | 7.911 qt | 9.259 qt | 11.01 qt | 9.586 qt |
| 18 lb | 8.628 qt | 8.376 qt | 9.804 qt | 11.66 qt | 10.15 qt |
| 19 lb | 9.107 qt | 8.842 qt | 10.35 qt | 12.31 qt | 10.71 qt |
| 20 lb | 9.586 qt | 9.307 qt | 10.89 qt | 12.95 qt | 11.28 qt |
When to Convert Pounds to Quarts
Pounds 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]
A third application of weight and volume conversions is when shipping freight when calculating the volumetric weight for cargo and packages. Trucks, ships, and airplanes are limited in the amount of weight or volume they can transport, so if one of those quantities is known, but the limitation is on the other, then it becomes necessary to convert between the two so as not to overload the shipping vehicle.
Keep reading to learn more about each unit of measure.
What Is a Pound?
Pounds are a widely used unit of weight in the United States. The National Bureau of Standards approved the international definition of the pound for use in the United States in 1959 after an agreement between six nations referred to as the International Yard and Pound Agreement.[3]
One pound is equal to 16 ounces, or 0.45359237 kilograms. In the avoirdupois or apothecaries' systems, one pound is equal to 7,000 grains.[4]
The pound is a US customary and imperial unit of mass. A pound is sometimes also referred to as a common ounce. Pounds can be abbreviated as lb (plural lbs), and are also sometimes abbreviated as lbm or #. For example, 1 pound can be written as 1 lb, 1 lbm, or 1 #, and 2 pounds can be written as 2 lbs.
A pound is frequently referred to as a unit of weight. While technically, a pound 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 pound weighs 1 pound on Earth, but only weighs one-sixth of that on the moon, yet still has the same mass.
Learn more about pounds.
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
- National Bureau of Standards, Refinement of Values for the Yard and Pound, U.S. Department of Commerce, July 1, 1959, https://www.nist.gov/system/files/documents/2017/05/09/frn-59-5442-1959.pdf
- Encyclopædia Britannica, Avoirdupois weight, https://www.britannica.com/science/avoirdupois-weight