Fluid Ounces to Ounces Conversion Calculator

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

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1 fl oz = 1.043175556502 oz

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How to Convert Fluid Ounces to Ounces

Since fluid ounces are a unit of volume and ounces are a unit of mass, 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 fluid ounces and ounces of an ingredient or substance, we must either multiply or divide by its density, depending on which direction we are performing the conversion.

While they sound like they might be related, fluid ounces and ounces are actually very different. Fluid ounces are a measure of liquid volume, as the name implies, and ounces are a measure of the weight of a solid object.

These units are also measured differently. To get a measurement in fluid ounces, you might use a measuring cup to measure the volume of liquid it holds, while to get a measurement in ounces, you might use a scale.

Although they're different, you can convert from one measurement to the other using a conversion formula.

Fluid Ounces to Ounces Formula

To convert a measurement in fluid ounces to ounces, multiply the volume by the density of the ingredient or material. Note that in order for this to work, the density must be in ounces per fluid ounce (oz/fl oz).

If the density is given in grams per milliliter (g/mL), then first multiply the density by 1.0432 to convert to oz/fl oz.

For a density given in g/mL, you can use this simple formula to convert:

ounces = fluid ounces × 1.0432 × density

Thus, the weight in ounces is equal to the volume in fluid ounces multiplied by 1.0432 times the density (in g/mL) of the ingredient, substance, or material.

For example, here's how to convert 5 fluid ounces to ounces for an ingredient with a density of 0.7 g/mL.
ounces = 5 fl oz × 1.0432 × 0.7 g/mL = 3.6511 oz

When to Convert Fluid Ounces to Ounces

Fluid ounces and ounces 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 volume to weight 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.

How Many Ounces Are in a Fluid Ounce?

The actual weight of a fluid ounce will vary depending on the density of the material. The table below shows how many ounces of various wet and dry ingredients are in a fluid ounce.

Fluid ounce measurements converted to ounces for commonly used cooking and baking ingredients.
Volume in Fluid Ounces: Weight in Ounces of:
Water Milk Cooking Oil All Purpose Flour Granulated Sugar
1 fl oz 1.0432 oz 1.0745 oz 0.917994 oz 0.55184 oz 0.881849 oz
2 fl oz 2.0864 oz 2.1489 oz 1.836 oz 1.1037 oz 1.7637 oz
3 fl oz 3.1295 oz 3.2234 oz 2.754 oz 1.6555 oz 2.6455 oz
4 fl oz 4.1727 oz 4.2979 oz 3.672 oz 2.2074 oz 3.5274 oz
5 fl oz 5.2159 oz 5.3724 oz 4.59 oz 2.7592 oz 4.4092 oz
6 fl oz 6.2591 oz 6.4468 oz 5.508 oz 3.311 oz 5.2911 oz
7 fl oz 7.3022 oz 7.5213 oz 6.426 oz 3.8629 oz 6.1729 oz
8 fl oz 8.3454 oz 8.5958 oz 7.344 oz 4.4147 oz 7.0548 oz
9 fl oz 9.3886 oz 9.6702 oz 8.262 oz 4.9666 oz 7.9366 oz
10 fl oz 10.43 oz 10.74 oz 9.1799 oz 5.5184 oz 8.8185 oz
11 fl oz 11.47 oz 11.82 oz 10.1 oz 6.0702 oz 9.7003 oz
12 fl oz 12.52 oz 12.89 oz 11.02 oz 6.6221 oz 10.58 oz
13 fl oz 13.56 oz 13.97 oz 11.93 oz 7.1739 oz 11.46 oz
14 fl oz 14.6 oz 15.04 oz 12.85 oz 7.7258 oz 12.35 oz
15 fl oz 15.65 oz 16.12 oz 13.77 oz 8.2776 oz 13.23 oz
16 fl oz 16.69 oz 17.19 oz 14.69 oz 8.8294 oz 14.11 oz
17 fl oz 17.73 oz 18.27 oz 15.61 oz 9.3813 oz 14.99 oz
18 fl oz 18.78 oz 19.34 oz 16.52 oz 9.9331 oz 15.87 oz
19 fl oz 19.82 oz 20.41 oz 17.44 oz 10.48 oz 16.76 oz
20 fl oz 20.86 oz 21.49 oz 18.36 oz 11.04 oz 17.64 oz
21 fl oz 21.91 oz 22.56 oz 19.28 oz 11.59 oz 18.52 oz
22 fl oz 22.95 oz 23.64 oz 20.2 oz 12.14 oz 19.4 oz
23 fl oz 23.99 oz 24.71 oz 21.11 oz 12.69 oz 20.28 oz
24 fl oz 25.04 oz 25.79 oz 22.03 oz 13.24 oz 21.16 oz
25 fl oz 26.08 oz 26.86 oz 22.95 oz 13.8 oz 22.05 oz
26 fl oz 27.12 oz 27.94 oz 23.87 oz 14.35 oz 22.93 oz
27 fl oz 28.17 oz 29.01 oz 24.79 oz 14.9 oz 23.81 oz
28 fl oz 29.21 oz 30.09 oz 25.7 oz 15.45 oz 24.69 oz
29 fl oz 30.25 oz 31.16 oz 26.62 oz 16 oz 25.57 oz
30 fl oz 31.3 oz 32.23 oz 27.54 oz 16.56 oz 26.46 oz
31 fl oz 32.34 oz 33.31 oz 28.46 oz 17.11 oz 27.34 oz
32 fl oz 33.38 oz 34.38 oz 29.38 oz 17.66 oz 28.22 oz
33 fl oz 34.42 oz 35.46 oz 30.29 oz 18.21 oz 29.1 oz
34 fl oz 35.47 oz 36.53 oz 31.21 oz 18.76 oz 29.98 oz
35 fl oz 36.51 oz 37.61 oz 32.13 oz 19.31 oz 30.86 oz
36 fl oz 37.55 oz 38.68 oz 33.05 oz 19.87 oz 31.75 oz
37 fl oz 38.6 oz 39.76 oz 33.97 oz 20.42 oz 32.63 oz
38 fl oz 39.64 oz 40.83 oz 34.88 oz 20.97 oz 33.51 oz
39 fl oz 40.68 oz 41.9 oz 35.8 oz 21.52 oz 34.39 oz
40 fl oz 41.73 oz 42.98 oz 36.72 oz 22.07 oz 35.27 oz

What Is a Fluid Ounce?

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 just an "ounce" but should not be confused with the unit of weight. One fluid ounce is equal to approximately 29.5735 milliliters, but in nutrition labeling, one fluid ounce is rounded to exactly 30 milliliters.[3]

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

Learn more about fluid ounces.

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.[4]

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 also 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.

References

  1. National Institute of Standards & Technology, Culinary Measurement Tips, https://www.nist.gov/pml/owm/culinary-measurement-tips
  2. 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
  3. 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
  4. James Bucki, Troy Ounce vs. Ounce, The Spruce, https://www.thesprucecrafts.com/troy-ounce-vs-ounce-4588158

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