Fluid Ounce Conversion Calculator

Enter a value in fluid ounces below to convert to another unit of volume.

What Is a Fluid Ounce?

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

A fluid ounce is a unit used to measure volume.

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.

You might also be interested in our volume calculator.

How Much 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. [1]

How to Convert Fluid Ounces

To convert fluid ounces to another unit of volume, you need to multiply the value by a conversion factor. A conversion factor is a numerical value used to change the units of a measurement without changing the value. [2]

You can find the conversion factors for fluid ounces in the conversion table below.

Then, multiply the volume measurement by the conversion factor to find the equivalent value in the desired unit of measurement.

fluid ounces × conversion factor = result

You can also use a calculator, such as one of the converters below, for the conversion.

Fluid Ounce Conversion Table

Common fluid ounce values and equivalent imperial and metric volume measurements

fluid ounces	gallons	quarts	pints	cups	tablespoons	teaspoons	cubic inches	cubic feet	cubic yards	liters	milliliters	cubic centimeters	cubic meters
1 fl oz	0.007812 gal	0.03125 qt	0.0625 pt	0.125 c	2 tbsp	6 tsp	1.804688 in³	0.001044 ft³	0.000038681 yd³	0.029574 L	29.57353 mL	29.57353 cm³	0.000029574 m³
2 fl oz	0.015625 gal	0.0625 qt	0.125 pt	0.25 c	4 tbsp	12 tsp	3.609375 in³	0.002089 ft³	0.000077361 yd³	0.059147 L	59.147059 mL	59.147059 cm³	0.000059147 m³
3 fl oz	0.023437 gal	0.09375 qt	0.1875 pt	0.375 c	6 tbsp	18 tsp	5.414063 in³	0.003133 ft³	0.000116 yd³	0.088721 L	88.720589 mL	88.720589 cm³	0.000088721 m³
4 fl oz	0.03125 gal	0.125 qt	0.25 pt	0.5 c	8 tbsp	24 tsp	7.21875 in³	0.004178 ft³	0.000155 yd³	0.118294 L	118.294118 mL	118.294118 cm³	0.000118 m³
5 fl oz	0.039062 gal	0.15625 qt	0.3125 pt	0.625 c	10 tbsp	30 tsp	9.023438 in³	0.005222 ft³	0.000193 yd³	0.147868 L	147.867648 mL	147.867648 cm³	0.000148 m³
6 fl oz	0.046875 gal	0.1875 qt	0.375 pt	0.75 c	12 tbsp	36 tsp	10.828125 in³	0.006266 ft³	0.000232 yd³	0.177441 L	177.441177 mL	177.441177 cm³	0.000177 m³
7 fl oz	0.054687 gal	0.21875 qt	0.4375 pt	0.875 c	14 tbsp	42 tsp	12.632813 in³	0.007311 ft³	0.000271 yd³	0.207015 L	207.014707 mL	207.014707 cm³	0.000207 m³
8 fl oz	0.0625 gal	0.25 qt	0.5 pt	1 c	16 tbsp	48 tsp	14.4375 in³	0.008355 ft³	0.000309 yd³	0.236588 L	236.588237 mL	236.588237 cm³	0.000237 m³
9 fl oz	0.070312 gal	0.28125 qt	0.5625 pt	1.125 c	18 tbsp	54 tsp	16.242188 in³	0.009399 ft³	0.000348 yd³	0.266162 L	266.161766 mL	266.161766 cm³	0.000266 m³
10 fl oz	0.078125 gal	0.3125 qt	0.625 pt	1.25 c	20 tbsp	60 tsp	18.046875 in³	0.010444 ft³	0.000387 yd³	0.295735 L	295.735296 mL	295.735296 cm³	0.000296 m³
11 fl oz	0.085937 gal	0.34375 qt	0.6875 pt	1.375 c	22 tbsp	66 tsp	19.851563 in³	0.011488 ft³	0.000425 yd³	0.325309 L	325.308825 mL	325.308825 cm³	0.000325 m³
12 fl oz	0.09375 gal	0.375 qt	0.75 pt	1.5 c	24 tbsp	72 tsp	21.65625 in³	0.012533 ft³	0.000464 yd³	0.354882 L	354.882355 mL	354.882355 cm³	0.000355 m³
13 fl oz	0.101562 gal	0.40625 qt	0.8125 pt	1.625 c	26 tbsp	78 tsp	23.460938 in³	0.013577 ft³	0.000503 yd³	0.384456 L	384.455884 mL	384.455884 cm³	0.000384 m³
14 fl oz	0.109375 gal	0.4375 qt	0.875 pt	1.75 c	28 tbsp	84 tsp	25.265625 in³	0.014621 ft³	0.000542 yd³	0.414029 L	414.029414 mL	414.029414 cm³	0.000414 m³
15 fl oz	0.117187 gal	0.46875 qt	0.9375 pt	1.875 c	30 tbsp	90 tsp	27.070313 in³	0.015666 ft³	0.00058 yd³	0.443603 L	443.602943 mL	443.602943 cm³	0.000444 m³
16 fl oz	0.125 gal	0.5 qt	1 pt	2 c	32 tbsp	96 tsp	28.875 in³	0.01671 ft³	0.000619 yd³	0.473176 L	473.176473 mL	473.176473 cm³	0.000473 m³
17 fl oz	0.132812 gal	0.53125 qt	1.0625 pt	2.125 c	34 tbsp	102 tsp	30.679688 in³	0.017754 ft³	0.000658 yd³	0.50275 L	502.750003 mL	502.750003 cm³	0.000503 m³
18 fl oz	0.140625 gal	0.5625 qt	1.125 pt	2.25 c	36 tbsp	108 tsp	32.484375 in³	0.018799 ft³	0.000696 yd³	0.532324 L	532.323532 mL	532.323532 cm³	0.000532 m³
19 fl oz	0.148437 gal	0.59375 qt	1.1875 pt	2.375 c	38 tbsp	114 tsp	34.289063 in³	0.019843 ft³	0.000735 yd³	0.561897 L	561.897062 mL	561.897062 cm³	0.000562 m³
20 fl oz	0.15625 gal	0.625 qt	1.25 pt	2.5 c	40 tbsp	120 tsp	36.09375 in³	0.020888 ft³	0.000774 yd³	0.591471 L	591.470591 mL	591.470591 cm³	0.000591 m³

Fluid Ounce Conversion Calculators

You can also convert volume using one of our fluid ounce converters below.

Fluid Ounces to Ounces Conversion Calculator

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

How to Convert Fluid Ounces to Ounces

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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.

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.

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

More Fluid Ounce & Ounce Conversions

• fluid ounces to teaspoons
• fluid ounces to tablespoons
• fluid ounces to cups
• fluid ounces to pints
• fluid ounces to quarts
• fluid ounces to gallons
• fluid ounces to milliliters
• fluid ounces to liters
• fluid ounces to pounds
• fluid ounces to milligrams
• fluid ounces to grams
• fluid ounces to kilograms
• teaspoons to ounces
• tablespoons to ounces
• cups to ounces
• pints to ounces
• quarts to ounces
• gallons to ounces
• milliliters to ounces
• liters to ounces
• pounds to ounces
• milligrams to ounces
• grams to ounces
• kilograms to ounces