Volume
ft³toin³
Convert cubic feet (ft³) to cubic inches (in³).
Factor1 ft³ = 1728 in³
Converter
ft³
Accepts numbers or expressions, e.g. 150 + 14.7
Result
in³
Rendered to 6 significant figures.
Formula
Formula
in³ = ft³ × 1728
Multiply any value in cubic feet by 1728 to obtain the value in cubic inches.
Worked example
Convert 1 ft³ to in³.
- 01Start with 1 ft³.
- 02Multiply by the conversion factor: 1 × 1728 = 1728 in³.
Result1 ft³ = 1728 in³
Conversion table
| ft³ | in³ |
|---|---|
| 1 | 1728 |
| 2 | 3456 |
| 5 | 8640 |
| 10 | 17280 |
| 20 | 34560 |
| 50 | 86400 |
| 100 | 1.7280e+5 |
| 200 | 3.4560e+5 |
| 500 | 8.6400e+5 |
| 1000 | 1.7280e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft³ to in³?
1 ft³ equals 1728 in³. To convert, multiply the value in cubic feet by 1728.
How do I convert 1 ft³ to in³?
1 ft³ = 1728 in³. For any value, multiply by 1728.
How do I convert in³ back to ft³?
Divide by the same factor — or equivalently, multiply by 0.0005787037. So 1 in³ = 0.000578704 ft³.
When would I need to convert cubic foot to cubic inch?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).