Fluid Ounce (fl oz) Conversion Calculator

Fluid Ounce Conversion Calculator

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

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What Is a Fluid Ounce?

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

References

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

National Institute of Standards & Technology, Unit Conversion, https://www.nist.gov/pml/owm/metric-si/unit-conversion