Convert Cubic feet per pound to Cubic inches per pound
Convert Cubic feet per pound (ft³/lb) to Cubic inches per pound (in³/lb) instantly and accurately.
Conversion Formula
in³/lb = ft³/lb × 1728
About Cubic feet per pound
The cubic foot per pound (ft³/lb) equals 0.028316846592 / 0.45359237 ≈0.062428 m³/kg, standard in US power-plant and HVAC engineering. ASHRAE psychrometric charts express humid-air specific volume in ft³/lb; Spirax Sarco steam tables in US customary units list specific volume in ft³/lb. Sea-level atmospheric air ≈1.205 kg/m³ corresponds to ≈0.835 ft³/lb. 1 ft³/lb ≈0.062428 m³/kg ≈62.43 L/kg.
About Cubic inches per pound
The cubic inch per pound (in³/lb) equals 1.6387064 × 10⁻⁵ / 0.45359237 ≈ 3.6127 × 10⁻⁵ m³/kg. US aerospace propellant tables and legacy NACA compressible-flow charts list gas specific volumes in in³/lb; pre-metric Mollier charts for steam plotted enthalpy vs. in³/lb. 1 in³/lb ≈3.6127 × 10⁻⁵ m³/kg ≈0.03613 cm³/g.
Quick Reference Table
| Cubic feet per pound (ft³/lb) | Cubic inches per pound (in³/lb) |
|---|---|
| 1 ft³/lb | 1728 in³/lb |
| 2 ft³/lb | 3456 in³/lb |
| 5 ft³/lb | 8640 in³/lb |
| 10 ft³/lb | 17280 in³/lb |
| 25 ft³/lb | 43200 in³/lb |
| 50 ft³/lb | 86400 in³/lb |
| 100 ft³/lb | 172800 in³/lb |