Convert Cubic inches per pound to Cubic feet per pound
Convert Cubic inches per pound (in³/lb) to Cubic feet per pound (ft³/lb) instantly and accurately.
Conversion Formula
ft³/lb = in³/lb × 0.0005787037037
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.
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.
Quick Reference Table
| Cubic inches per pound (in³/lb) | Cubic feet per pound (ft³/lb) |
|---|---|
| 1 in³/lb | 0.000578704 ft³/lb |
| 2 in³/lb | 0.00115741 ft³/lb |
| 5 in³/lb | 0.00289352 ft³/lb |
| 10 in³/lb | 0.00578704 ft³/lb |
| 25 in³/lb | 0.0144676 ft³/lb |
| 50 in³/lb | 0.0289352 ft³/lb |
| 100 in³/lb | 0.0578704 ft³/lb |