Cubic Foot (ft³)
The cubic foot (ft³) is the volume of a cube with 1 ft (0.3048 m) edges: exactly 0.028316846592 m³, or about 28.32 L.
Symbol: ft³ (ASCII: ft3)
Quantity: volume (capacity)
SI relation: 1 ft³ = 0.028316846592 m³ (exact)
Derivation: 1 ft³ = (0.3048 m)³ = 0.028316846592 m³
Exact: yes, by definition
Typical uses
- Natural gas billing (ccf, Mcf)
- Refrigerator, freezer and storage capacity
- Room and duct volumes in US HVAC
Convert cubic feet to other units
| Conversion | 1 ft³ equals | Reverse |
|---|---|---|
| cubic foot to cubic meter | 0.02831684659 m³ | cubic meter to cubic foot |
| cubic foot to liter | 28.31684659 L | liter to cubic foot |
| cubic foot to milliliter | 28316.84659 mL | milliliter to cubic foot |
| cubic foot to US gallon | 7.480519481 gal (US) | US gallon to cubic foot |
| cubic foot to cubic centimeter | 28316.84659 cm³ | cubic centimeter to cubic foot |
| cubic foot to cubic inch | 1728 in³ | cubic inch to cubic foot |
| cubic foot to imperial gallon | 6.228835459 gal (imp) | imperial gallon to cubic foot |
Open the Volume Converter to convert any value between all units.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "cubic foot (ft³)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Cubic Foot (ft³). Retrieved October 17, 2026, from https://scientificconverters.com/units/cubic-foot/
IEEE
Scientific Converters, "Cubic Foot (ft³)," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/units/cubic-foot/