Cups to Cubic Inches Conversion (c to in³)

Cups to Cubic Inches Converter

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

Have a Question or Feedback?

Result in Cubic Inches:

1 c = 14.4375 in³

How to Convert Cups to Cubic Inches

To convert a measurement in cups to a measurement in cubic inches, multiply the volume by the following conversion ratio: 14.4375 cubic inches/cup.

Since one cup is equal to 14.4375 cubic inches, you can use this simple formula to convert:

cubic inches = cups × 14.4375

The volume in cubic inches is equal to the volume in cups multiplied by 14.4375.

For example, here's how to convert 5 cups to cubic inches using the formula above.

cubic inches = (5 c × 14.4375) = 72.1875 in³

How Many Cubic Inches Are in a Cup?

There are 14.4375 cubic inches in a cup, which is why we use this value in the formula above.

1 c = 14.4375 in³

Cups and cubic inches are both units used to measure volume. Keep reading to learn more about each unit of measure.

What Is a Cup?

The cup is a unit of volume equal to 16 tablespoons or 8 fluid ounces. The cup should not be confused with the metric cup or the teacup, which are different units of volume.

One standard cup is equal to 236.588 milliliters, but for nutrition labeling, one cup is defined as 240 milliliters.^[1] To further confuse things, a metric cup is equal to 250 mL, while in Japan, a cup is equivalent to only 200 mL.

The cup is a US customary unit of volume. Cups can be abbreviated as c, and are also sometimes abbreviated as C. For example, 1 cup can be written as 1 c or 1 C.

Learn more about cups.

What Is a Cubic Inch?

A cubic inch is a unit of volume equal to the space consumed by a cube with sides that are one inch in all directions. One cubic inch is equivalent 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.

Learn more about cubic inches.

Cup to Cubic Inch Conversion Table

Table showing various cup measurements converted to cubic inches.
Cups	Cubic Inches
1 c	14.44 in³
2 c	28.88 in³
3 c	43.31 in³
4 c	57.75 in³
5 c	72.19 in³
6 c	86.63 in³
7 c	101.06 in³
8 c	115.5 in³
9 c	129.94 in³
10 c	144.38 in³
11 c	158.81 in³
12 c	173.25 in³
13 c	187.69 in³
14 c	202.13 in³
15 c	216.56 in³
16 c	231 in³
17 c	245.44 in³
18 c	259.88 in³
19 c	274.31 in³
20 c	288.75 in³
21 c	303.19 in³
22 c	317.63 in³
23 c	332.06 in³
24 c	346.5 in³
25 c	360.94 in³
26 c	375.38 in³
27 c	389.81 in³
28 c	404.25 in³
29 c	418.69 in³
30 c	433.13 in³
31 c	447.56 in³
32 c	462 in³
33 c	476.44 in³
34 c	490.88 in³
35 c	505.31 in³
36 c	519.75 in³
37 c	534.19 in³
38 c	548.63 in³
39 c	563.06 in³
40 c	577.5 in³

Table showing various cup measurements converted to cubic inches.

Cups

Cubic Inches

1 c

14.44 in³

2 c

28.88 in³

3 c

43.31 in³

4 c

57.75 in³

5 c

72.19 in³

6 c

86.63 in³

7 c

101.06 in³

8 c

115.5 in³

9 c

129.94 in³

10 c

144.38 in³

11 c

158.81 in³

12 c

173.25 in³

13 c

187.69 in³

14 c

202.13 in³

15 c

216.56 in³

16 c

231 in³

17 c

245.44 in³

18 c

259.88 in³

19 c

274.31 in³

20 c

288.75 in³

21 c

303.19 in³

22 c

317.63 in³

23 c

332.06 in³

24 c

346.5 in³

25 c

360.94 in³

26 c

375.38 in³

27 c

389.81 in³

28 c

404.25 in³

29 c

418.69 in³

30 c

433.13 in³

31 c

447.56 in³

32 c

462 in³

33 c

476.44 in³

34 c

490.88 in³

35 c

505.31 in³

36 c

519.75 in³

37 c

534.19 in³

38 c

548.63 in³

39 c

563.06 in³

40 c

577.5 in³

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 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