Convert Cubic Inches to Cups

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

Results in Cups:
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1 in³ = 0.069264 c

How to Convert Cubic Inches to Cups

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

To convert a cubic inch measurement to a cup measurement, multiply the volume by the conversion ratio. One cubic inch is equal to 0.069264 cups, so use this simple formula to convert:

cups = cubic inches × 0.069264

The volume in cups is equal to the cubic inches multiplied by 0.069264.

For example, here's how to convert 5 cubic inches to cups using the formula above.
5 in³ = (5 × 0.069264) = 0.34632 c

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

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.

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.


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 cup is equal to just under 236.6 milliliters, but in nutrition labelling, one cup is equal to 240 milliliters.

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.

Cubic Inch Measurements and Equivalent Cup Conversions

Common cubic inch values converted to the equivalent cup value
Cubic Inches Cups
1 in³ 0.069264 c
2 in³ 0.138528 c
3 in³ 0.207792 c
4 in³ 0.277056 c
5 in³ 0.34632 c
6 in³ 0.415584 c
7 in³ 0.484848 c
8 in³ 0.554113 c
9 in³ 0.623377 c
10 in³ 0.692641 c
11 in³ 0.761905 c
12 in³ 0.831169 c
13 in³ 0.900433 c
14 in³ 0.969697 c
15 in³ 1.039 c
16 in³ 1.1082 c
17 in³ 1.1775 c
18 in³ 1.2468 c
19 in³ 1.316 c
20 in³ 1.3853 c
21 in³ 1.4545 c
22 in³ 1.5238 c
23 in³ 1.5931 c
24 in³ 1.6623 c
25 in³ 1.7316 c
26 in³ 1.8009 c
27 in³ 1.8701 c
28 in³ 1.9394 c
29 in³ 2.0087 c
30 in³ 2.0779 c
31 in³ 2.1472 c
32 in³ 2.2165 c
33 in³ 2.2857 c
34 in³ 2.355 c
35 in³ 2.4242 c
36 in³ 2.4935 c
37 in³ 2.5628 c
38 in³ 2.632 c
39 in³ 2.7013 c
40 in³ 2.7706 c

More Cubic Inch Volume Conversions

US Liquid
Convert to Gallons
1 in³ is equal to 0.004329 gallons
Convert to Quarts
1 in³ is equal to 0.017316 quarts
Convert to Pints
1 in³ is equal to 0.034632 pints
Convert to Fluid Ounces
1 in³ is equal to 0.554113 fluid ounces
US Cooking
Convert to Tablespoons
1 in³ is equal to 1.108225 tablespoons
Convert to Teaspoons
1 in³ is equal to 3.324675 teaspoons
US Customary Volume
Convert to Cubic Feet
1 in³ is equal to 0.000579 cubic feet
Convert to Cubic Yards
1 in³ is equal to 2.1433E-5 cubic yards
Metric Volume
Convert to Liters
1 in³ is equal to 0.016387 liters
Convert to Milliliters
1 in³ is equal to 16.387064 milliliters
Convert to Cubic Centimeters
1 in³ is equal to 16.387064 cubic centimeters
Convert to Cubic Meters
1 in³ is equal to 1.6387E-5 cubic meters

Unit of Measurement Conversion Made Easy!

There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold of the typical dry and complicated experience. In addition to converting from one measurement to another, we provide the formula so you can see how the conversion is done, use it on you’re own calculator if you need to!

Convert units of length, weight, volume, and area between imperial and metric measures

Understanding the Metric System

The metric system makes it relatively easy to convert from one metric unit to another metric unit. The metric system uses a base unit, think meters or grams, and a prefix such as kilo or milli. The prefixes differ from the base units by differing powers of 10. So to convert within the metric system it’s usually a matter of multiplying or dividing by one of the powers of 10.

Here is a list of some of the common metric prefixes:

  • “kilo” – 1,000x larger
  • “hecto” – 100x larger
  • “deca” – 10x larger
  • “deci” – 10x smaller
  • “centi” – 100x smaller
  • “milli” – 1,000x smaller

There is a helpful mnemonic for remembering the prefixes: “King Henry Died Until Drinking Chocolate Milk.”
The u in Until refers to the base unit.