cubic foot to cubic inch
Convert cubic foot (ft³) to cubic inch (in³). Use an editable volume converter, conversion formula, and reference table.
1 ft³ = 1,728 in³
Conversion formula
One cubic foot equals 1,728 cubic inch. Multiply your value in cubic foot by this factor to get cubic inch. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 cubic foot:5 × 1,728 = 8,640 in³
Conversion table
| cubic foot (ft³) | cubic inch (in³) |
|---|---|
| 0.01 | 17.28 |
| 0.1 | 172.8 |
| 1 | 1,728 |
| 2 | 3,456 |
| 5 | 8,640 |
| 10 | 17,280 |
| 25 | 43,200 |
| 50 | 86,400 |
| 100 | 172,800 |
| 1000 | 1,728,000 |
About these measurements
Volume describes three-dimensional space or liquid capacity.
The base reference used here is the liter. One cubic foot is 28.31684659 base units; one cubic inch is 0.016387064 base units.
Important distinctions
US liquid measures and Imperial measures are different. Dry gallons and recipe cups are excluded.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert ft³ to in³?
Multiply the quantity in ft³ by 1,728. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the cubic inch to cubic foot converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
