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Cubic Feet to Cubic Inches (ft³ to in³) Converter

1 cubic foot (ft³) = 1,728 cubic inches (in³). To convert cubic feet to cubic inches, multiply by 1,728: 25 ft³ × 1,728 = 43,200 in³.

1 ft³ = 1728 in³
Convert the other way: Cubic Inches to Cubic Feet

Quick facts

How to convert cubic feet to cubic inches

  1. Take the value in cubic feet.
  2. Multiply it by 1,728 (the number of cubic inches in one cubic foot).
  3. Round the result to the precision you need.
in³ = ft³ × 1,728

Worked example: 25 ft³ × 1,728 = 43200 in³.

To convert cubic inches back to cubic feet, multiply by 0.000578704, or divide by 1,728.

Source: NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units).

Cubic Feet to Cubic Inches conversion table

Cubic Feet to Cubic Inches conversion table
Cubic Feet [ft³]Cubic Inches [in³]
0.001 ft³1.728 in³
0.01 ft³17.28 in³
0.1 ft³172.8 in³
0.5 ft³864 in³
1 ft³1728 in³
2 ft³3456 in³
5 ft³8640 in³
10 ft³17280 in³

ft³ to in³ chart from 1 to 100

Cubic Inches to Cubic Feet conversion table

Cubic Inches to Cubic Feet conversion table
Cubic Inches [in³]Cubic Feet [ft³]
1 in³0.0005787037 ft³
10 in³0.005787037 ft³
100 in³0.0578703704 ft³
1000 in³0.5787037037 ft³
10000 in³5.787037037 ft³
100000 in³57.8703703704 ft³
1000000 in³578.7037037037 ft³

Cubic Feet vs Cubic Inches

Cubic FootCubic Inch
Symbolft³in³
Equals1 ft³ = 1,728 in³1 in³ = 0.000578704 ft³

What is a cubic foot?

The volume of a cube with 1-foot sides. Used in the US for natural gas usage and shipping volume.

What is a cubic inch?

The volume of a cube with 1-inch sides. Used in the US for small mechanical parts and engine displacement.

Frequently asked questions

How many cubic inches are in a cubic foot?

There are 1,728 cubic inches in 1 cubic foot (1 ft³ = 1728 in³).

How many cubic feet are in a cubic inch?

There are 0.000578704 cubic feet in 1 cubic inch (1 in³ = 0.0005787037 ft³).

How do I convert cubic feet to cubic inches?

Multiply the number of cubic feet by 1,728. For example, 10 ft³ × 1,728 = 17,280 in³. To convert back, multiply by 0.000578704.

What is 10 ft³ in cubic inches?

10 ft³ = 17,280 in³.

What is 100 ft³ in cubic inches?

100 ft³ = 172,800 in³.

Is the conversion exact?

Yes. The factor comes from the official definitions of both units (NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units)). Results are shown to up to 10 decimal places; round them to suit your purpose.

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Reviewed by

Dr. Muhammad Amjad Khadim PhD Mathematics

Dr. Muhammad Amjad Khadim holds a PhD in Mathematics. He writes and reviews the guides on pakmath.com and checks every formula, conversion factor and worked example against published standards and official guidance before it goes live. Spotted an error? Tell us and it will be corrected.

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First published 28 October 2026 · Last reviewed 5 November 2026