Fluid Ounces to Pounds & Ounces Conversion Calculator

Enter the volume in fluid ounces below to calculate the weight in pounds.

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1 fl oz = 0.065198472281 lb
1 fl oz = 0 lb 1.043175556496 oz

How to Convert Fluid Ounces to Pounds

To convert a fluid ounce measurement to a pound measurement, divide the volume multiplied by the density of the ingredient or material by 15.337783.

You can use this simple formula to convert:

pounds = fluid ounces × ingredient density / 15.337783

Thus, the volume in pounds is equal to the fluid ounces times the density of the ingredient or material divided by 15.337783.

For example, here's how to convert 5 fluid ounces to pounds for an ingredient with a density of 0.7 g/mL.
5 fl oz = 5 × 0.7 / 15.337783 = 0.228194652985 lb

Fluid ounces 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.

Keep reading to learn more about each unit of measure.

Fluid Ounces

The US fluid ounce is a unit of volume equal to 1/16 of a pint or 1/8 of a cup. The fluid ounce is sometimes referred to as an "ounce" but should not be confused with the unit of mass. One fluid ounce is equal to just under 29.6 milliliters, but in nutrition labeling, one fluid ounce is rounded to exactly 30 milliliters.[2]

The fluid ounce is a US customary unit of volume. Fluid ounces can be abbreviated as fl oz, and are also sometimes abbreviated as fl. oz. or oz. fl.. For example, 1 fluid ounce can be written as 1 fl oz, 1 fl. oz., or 1 oz. fl..

Pounds

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 #.

Fluid Ounce to Pound Conversion Table

Fluid ounce measurements converted to pounds for commonly used ingredients.
Volume in Fluid Ounces: Weight in Pounds of:
Water Milk Cooking Oil All Purpose Flour Granulated Sugar
1 fl oz 0.065198 lb 0.067154 lb 0.057375 lb 0.03449 lb 0.045639 lb
2 fl oz 0.130397 lb 0.134309 lb 0.114749 lb 0.06898 lb 0.091278 lb
3 fl oz 0.195595 lb 0.201463 lb 0.172124 lb 0.10347 lb 0.136917 lb
4 fl oz 0.260794 lb 0.268618 lb 0.229499 lb 0.13796 lb 0.182556 lb
5 fl oz 0.325992 lb 0.335772 lb 0.286873 lb 0.17245 lb 0.228195 lb
6 fl oz 0.391191 lb 0.402927 lb 0.344248 lb 0.20694 lb 0.273834 lb
7 fl oz 0.456389 lb 0.470081 lb 0.401623 lb 0.24143 lb 0.319473 lb
8 fl oz 0.521588 lb 0.537235 lb 0.458997 lb 0.27592 lb 0.365111 lb
9 fl oz 0.586786 lb 0.60439 lb 0.516372 lb 0.31041 lb 0.41075 lb
10 fl oz 0.651985 lb 0.671544 lb 0.573747 lb 0.3449 lb 0.456389 lb
11 fl oz 0.717183 lb 0.738699 lb 0.631121 lb 0.37939 lb 0.502028 lb
12 fl oz 0.782382 lb 0.805853 lb 0.688496 lb 0.41388 lb 0.547667 lb
13 fl oz 0.84758 lb 0.873008 lb 0.745871 lb 0.44837 lb 0.593306 lb
14 fl oz 0.912779 lb 0.940162 lb 0.803245 lb 0.48286 lb 0.638945 lb
15 fl oz 0.977977 lb 1.0073 lb 0.86062 lb 0.51735 lb 0.684584 lb
16 fl oz 1.0432 lb 1.0745 lb 0.917994 lb 0.55184 lb 0.730223 lb
17 fl oz 1.1084 lb 1.1416 lb 0.975369 lb 0.58633 lb 0.775862 lb
18 fl oz 1.1736 lb 1.2088 lb 1.0327 lb 0.62082 lb 0.821501 lb
19 fl oz 1.2388 lb 1.2759 lb 1.0901 lb 0.65531 lb 0.86714 lb
20 fl oz 1.304 lb 1.3431 lb 1.1475 lb 0.6898 lb 0.912779 lb
21 fl oz 1.3692 lb 1.4102 lb 1.2049 lb 0.72429 lb 0.958418 lb
22 fl oz 1.4344 lb 1.4774 lb 1.2622 lb 0.75878 lb 1.0041 lb
23 fl oz 1.4996 lb 1.5446 lb 1.3196 lb 0.79327 lb 1.0497 lb
24 fl oz 1.5648 lb 1.6117 lb 1.377 lb 0.82776 lb 1.0953 lb
25 fl oz 1.63 lb 1.6789 lb 1.4344 lb 0.86225 lb 1.141 lb
26 fl oz 1.6952 lb 1.746 lb 1.4917 lb 0.89674 lb 1.1866 lb
27 fl oz 1.7604 lb 1.8132 lb 1.5491 lb 0.93123 lb 1.2323 lb
28 fl oz 1.8256 lb 1.8803 lb 1.6065 lb 0.96572 lb 1.2779 lb
29 fl oz 1.8908 lb 1.9475 lb 1.6639 lb 1.0002 lb 1.3235 lb
30 fl oz 1.956 lb 2.0146 lb 1.7212 lb 1.0347 lb 1.3692 lb
31 fl oz 2.0212 lb 2.0818 lb 1.7786 lb 1.0692 lb 1.4148 lb
32 fl oz 2.0864 lb 2.1489 lb 1.836 lb 1.1037 lb 1.4604 lb
33 fl oz 2.1516 lb 2.2161 lb 1.8934 lb 1.1382 lb 1.5061 lb
34 fl oz 2.2167 lb 2.2833 lb 1.9507 lb 1.1727 lb 1.5517 lb
35 fl oz 2.2819 lb 2.3504 lb 2.0081 lb 1.2072 lb 1.5974 lb
36 fl oz 2.3471 lb 2.4176 lb 2.0655 lb 1.2416 lb 1.643 lb
37 fl oz 2.4123 lb 2.4847 lb 2.1229 lb 1.2761 lb 1.6886 lb
38 fl oz 2.4775 lb 2.5519 lb 2.1802 lb 1.3106 lb 1.7343 lb
39 fl oz 2.5427 lb 2.619 lb 2.2376 lb 1.3451 lb 1.7799 lb
40 fl oz 2.6079 lb 2.6862 lb 2.295 lb 1.3796 lb 1.8256 lb

References

  1. National Institute of Standards & Technology, Metric Cooking Resources, https://www.nist.gov/pml/weights-and-measures/metric-cooking-resources
  2. U.S. Food & Drug Administration, Guidance for Industry: Guidelines for Determining Metric Equivalents of Household Measures, https://www.fda.gov/regulatory-information/search-fda-guidance-documents/guidance-industry-guidelines-determining-metric-equivalents-household-measures
  3. 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
  4. Encyclopædia Britannica, Avoirdupois weight, https://www.britannica.com/science/avoirdupois-weight

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