Cubic Feet To Cubic Inches Conversion (ft³ To In³) - Inch Calculator

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• Cubic Feet to Cubic Inches Converter
• How to Convert Cubic Feet to Cubic Inches
• How Many Cubic Inches Are in a Cubic Foot?
• What Is a Cubic Foot?
• What Is a Cubic Inch?
• Cubic Foot to Cubic Inch Conversion Table
• References

Person Icon By Joe Sexton

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

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Sexton, J. (n.d.). Cubic Feet to Cubic Inches Converter. Inch Calculator. Retrieved March 6, 2026, from https://www.inchcalculator.com/convert/cubic-foot-to-cubic-inch/

How to Convert Cubic Feet to Cubic Inches

To convert a measurement in cubic feet to a measurement in cubic inches, multiply the volume by the following conversion ratio: 1,728 cubic inches/cubic foot.

Since one cubic foot is equal to 1,728 cubic inches, you can use this simple formula to convert:

cubic inches = cubic feet × 1,728

The volume in cubic inches is equal to the volume in cubic feet multiplied by 1,728.

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

cubic inches = (5 ft³ × 1,728) = 8,640 in³

How Many Cubic Inches Are in a Cubic Foot?

There are 1,728 cubic inches in a cubic foot, which is why we use this value in the formula above.

1 ft³ = 1,728 in³

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

What Is a Cubic Foot?

The cubic foot is a unit of volume that is equal to the space consumed by a cube having sides one foot on each edge.

The cubic foot is a US customary and imperial unit of volume. A cubic foot is sometimes also referred to as a cubic ft. Cubic feet can be abbreviated as ft³, and are also sometimes abbreviated as cu foot, cu ft, or CF. For example, 1 cubic foot can be written as 1 ft³, 1 cu foot, 1 cu ft, or 1 CF.

You can calculate volume using a cubic footage calculator if you have the dimensions of a space or object.

Learn more about cubic feet.

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.[1]

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.

Cubic Foot to Cubic Inch Conversion Table

Table showing various cubic foot measurements converted to cubic inches.

Cubic Feet	Cubic Inches
0.001 ft³	1.728 in³
0.002 ft³	3.456 in³
0.003 ft³	5.184 in³
0.004 ft³	6.912 in³
0.005 ft³	8.64 in³
0.006 ft³	10.37 in³
0.007 ft³	12.1 in³
0.008 ft³	13.82 in³
0.009 ft³	15.55 in³
0.01 ft³	17.28 in³
0.02 ft³	34.56 in³
0.03 ft³	51.84 in³
0.04 ft³	69.12 in³
0.05 ft³	86.4 in³
0.06 ft³	103.68 in³
0.07 ft³	120.96 in³
0.08 ft³	138.24 in³
0.09 ft³	155.52 in³
0.1 ft³	172.8 in³
0.2 ft³	345.6 in³
0.3 ft³	518.4 in³
0.4 ft³	691.2 in³
0.5 ft³	864 in³
0.6 ft³	1,037 in³
0.7 ft³	1,210 in³
0.8 ft³	1,382 in³
0.9 ft³	1,555 in³
1 ft³	1,728 in³

References

1. 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

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