Cups to Pounds & Ounces Conversion Calculator

Enter the volume in cups below to calculate the weight in pounds.

Results in Pounds:
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1 c = 0.521587778218 lb
1 c = 0 lb 8.345404451488 oz
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How to Convert Cups to Pounds

To convert a cup measurement to a pound measurement, divide the volume multiplied by the density of the ingredient or material by 1.917223.

You can use this simple formula to convert:

pounds = cups × ingredient density / 1.917223

Thus, the volume in pounds is equal to the cups times the density of the ingredient or material divided by 1.917223.

For example, here's how to convert 5 cups to pounds for an ingredient with a density of 0.7 g/mL.
5 c = 5 × 0.7 / 1.917223 = 1.825557 lb

Cups and pounds 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.

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 volume to weight conversion.

For cooking and baking ingredients, you can get more specific results using our butter, flour, sugar conversion calculators.

Keep reading to learn more about each unit of measure.


The cup is a unit of volume equal to 16 tablespoons or 8 fluid ounces. The cup should not be confused with the metric cup or the teacup, which are different units of volume. One cup is equal to just under 236.6 milliliters, but in nutrition labeling, one cup is equal to 240 milliliters.[2]

The cup is a US customary unit of volume. Cups can be abbreviated as c, and are also sometimes abbreviated as C. For example, 1 cup can be written as 1 c or 1 C.


Pounds are a widely used unit of mass/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 weight. A pound is sometimes also referred to as a common ounce. Pounds can be abbreviated as lb, and are also sometimes abbreviated as lbs, lbm, or #. For example, 1 pound can be written as 1 lb, 1 lbs, 1 lbm, or 1 #.

Cup to Pound Conversion Table

Cup measurements converted to pounds for commonly used ingredients.
Volume in Cups: Weight in Pounds of:
Water Milk Cooking Oil All Purpose Flour Granulated Sugar
1/8 c 0.065198 lb 0.067154 lb 0.057375 lb 0.03449 lb 0.055116 lb
1/4 c 0.130397 lb 0.134309 lb 0.114749 lb 0.06898 lb 0.110231 lb
1/3 c 0.173863 lb 0.179078 lb 0.152999 lb 0.091973 lb 0.146975 lb
1/2 c 0.260794 lb 0.268618 lb 0.229499 lb 0.13796 lb 0.220462 lb
2/3 c 0.347725 lb 0.358157 lb 0.305998 lb 0.183947 lb 0.29395 lb
3/4 c 0.391191 lb 0.402927 lb 0.344248 lb 0.20694 lb 0.330693 lb
1 c 0.521588 lb 0.537235 lb 0.458997 lb 0.27592 lb 0.440925 lb


  1. National Institute of Standards & Technology, Metric Cooking Resources,
  2. U.S. Food & Drug Administration, Guidance for Industry: Guidelines for Determining Metric Equivalents of Household Measures,
  3. National Bureau of Standards, Refinement of Values for the Yard and Pound, U.S. Department of Commerce, July 1, 1959,
  4. Encyclopædia Britannica, Avoirdupois weight,

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