Cubic Foot to Cubic Inch Converter

Volume Converter

40 units available

Decimals:

From

To

1,728

1 ft³ = 1,728 in³

Formula:

in³ = ft³ × 1,728

With your value: 1 ft³ = 1,728 in³

How big is that?

Everyday references on a logarithmic scale, all expressed in cubic foot so you can sanity-check the result.

Milk carton (1/2.8e+4 your value)0.0000353 ft³

Kitchen bucket (1/2.8e+3 your value)0.000353 ft³

Car fuel tank (1/5.7e+2 your value)0.00177 ft³

Bathtub (1/1.4e+2 your value)0.00706 ft³

Hot tub (1/19 your value)0.0530 ft³

Your value1.00 ft³

Other Cubic Foot to Cubic Inch conversions

2 ft³ to in³ 3 ft³ to in³ 4 ft³ to in³ 5 ft³ to in³ 6 ft³ to in³ 7 ft³ to in³ 8 ft³ to in³

Cubic Foot to Cubic Inch Conversion Table

Cubic Foot (ft³)	Cubic Inch (in³)
0.5	864
1	1,728
2	3,456
5	8,640
10	17,280
15	25,920
20	34,560
25	43,200
50	86,400
100	172,800
250	432,000
500	864,000
1000	1,728,000

Cubic Inch to Cubic Foot Conversion Table

Cubic Inch (in³)	Cubic Foot (ft³)
0.5	0.000289
1	0.000579
2	0.001157
5	0.002894
10	0.005787
15	0.008681
20	0.011574
25	0.014468
50	0.028935
100	0.05787
250	0.144676
500	0.289352
1000	0.578704

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Cubic Foot (ft³)

Volume

Exact conversion

Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Cubic Inch (in³)

Volume

Exact conversion

Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Cubic Foot to Cubic Inch

To convert from Cubic Foot (ft³) to Cubic Inch (in³), multiply the value by 1,728.

Formula: in³ = ft³ × 1,728

Reverse: ft³ = in³ × 0.0005787037

Step-by-Step Example

Start with your value in Cubic Foot. For example: 5 ft³
Multiply by the conversion factor: 5 x 1,728
The result is: 8,640 in³

About Cubic Foot

The cubic foot equals about 28.3168 litres and is the standard unit for appliance capacity and gas metering in the US.

Common uses: refrigerator capacity, natural gas billing, shipping volume.

About Cubic Inch

The cubic inch (in³) is a unit of volume and capacity. One cubic inch equals 0.016387064 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: volume calculations, engineering and science, education.

Frequently Asked Questions

How many Cubic Inch are in 1 Cubic Foot?

There are exactly 1,728 Cubic Inch in 1 Cubic Foot. This means the conversion factor from Cubic Foot to Cubic Inch is 1,728.

What is the formula to convert Cubic Foot to Cubic Inch?

The formula to convert Cubic Foot to Cubic Inch is: in³ = ft³ × 1,728. For example, to convert 10 Cubic Foot to Cubic Inch, you would multiply 10 by 1,728.

What is a Cubic Foot?