Fluid Ounces to Cubic Inches Conversion

Enter the volume in fluid ounces below to get the value converted to cubic inches.

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1 fl oz = 1.804688 in³

How to Convert Fluid Ounces to Cubic Inches

Calculators can be used to convert measurements from one unit to another

To convert a fluid ounce measurement to a cubic inch measurement, multiply the volume by the conversion ratio. One fluid ounce is equal to 1.804688 cubic inches, so use this simple formula to convert:

cubic inches = fluid ounces × 1.804688

The volume in cubic inches is equal to the fluid ounces multiplied by 1.804688.

For example, here's how to convert 5 fluid ounces to cubic inches using the formula above.
5 fl oz = (5 × 1.804688) = 9.023438 in³

Fluid ounces and cubic inches are both units used to measure volume. 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 labelling, one fluid ounce is rounded to exactly 30 milliliters.[1]

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..

Cubic Inches

The cubic inch is a unit of volume that is equal to the space consumed by a cube with sides that are one inch in all directions. One cubic inch is equal to about 16.387 cubic centimeters or 0.554 fluid ounces.[2]

The cubic inch is a US customary and imperial unit of volume. A cubic inch is sometimes also referred to as a cubic in. Cubic inches can be abbreviated as in³, and are also sometimes abbreviated as cu inch, cu in, or CI. For example, 1 cubic inch can be written as 1 in³, 1 cu inch, 1 cu in, or 1 CI.

Fluid Ounce to Cubic Inch Conversion Table

Fluid ounce measurements converted to cubic inches
Fluid Ounces Cubic Inches
1 fl oz 1.8047 in³
2 fl oz 3.6094 in³
3 fl oz 5.4141 in³
4 fl oz 7.2188 in³
5 fl oz 9.0234 in³
6 fl oz 10.83 in³
7 fl oz 12.63 in³
8 fl oz 14.44 in³
9 fl oz 16.24 in³
10 fl oz 18.05 in³
11 fl oz 19.85 in³
12 fl oz 21.66 in³
13 fl oz 23.46 in³
14 fl oz 25.27 in³
15 fl oz 27.07 in³
16 fl oz 28.88 in³
17 fl oz 30.68 in³
18 fl oz 32.48 in³
19 fl oz 34.29 in³
20 fl oz 36.09 in³
21 fl oz 37.9 in³
22 fl oz 39.7 in³
23 fl oz 41.51 in³
24 fl oz 43.31 in³
25 fl oz 45.12 in³
26 fl oz 46.92 in³
27 fl oz 48.73 in³
28 fl oz 50.53 in³
29 fl oz 52.34 in³
30 fl oz 54.14 in³
31 fl oz 55.95 in³
32 fl oz 57.75 in³
33 fl oz 59.55 in³
34 fl oz 61.36 in³
35 fl oz 63.16 in³
36 fl oz 64.97 in³
37 fl oz 66.77 in³
38 fl oz 68.58 in³
39 fl oz 70.38 in³
40 fl oz 72.19 in³

References

  1. 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
  2. National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf