Convert Cubic feet per pound to Cubic metres per kilogram
Convert Cubic feet per pound (ft³/lb) to Cubic metres per kilogram (m³/kg) instantly and accurately.
Conversion Formula
m³/kg = ft³/lb × 0.06242796058
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 metres per kilogram
The cubic metre per kilogram (m³/kg) is the SI coherent derived unit of specific volume - the reciprocal of density. In steam and refrigerant thermodynamics, m³/kg appears in state tables: water at 100°C, 0.1 MPa has specific volume 1.674 m³/kg (vapour) and 1.044 × 10⁻³ m³/kg (liquid). The specific gas constant and molar volume calculations use m³/kg. 1 m³/kg = 1000 L/kg = 1000 cm³/g.
Quick Reference Table
| Cubic feet per pound (ft³/lb) | Cubic metres per kilogram (m³/kg) |
|---|---|
| 1 ft³/lb | 0.062428 m³/kg |
| 2 ft³/lb | 0.124856 m³/kg |
| 5 ft³/lb | 0.31214 m³/kg |
| 10 ft³/lb | 0.62428 m³/kg |
| 25 ft³/lb | 1.5607 m³/kg |
| 50 ft³/lb | 3.1214 m³/kg |
| 100 ft³/lb | 6.2428 m³/kg |