Convert between m³/kg, ft³/lb, and other specific volume units, the direct inverse of density, explained simply.
Currently converting cubic meter/kilogram to cubic foot/pound. Swap units to reverse.
How to Convert
1 m³/kg = 16.0185 ft³/lb
1 ft³/lb = 0.062428 m³/kg
Quick Conversion Table
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Specific Volume Is Simply Density Turned Upside Down
Specific volume measures exactly the same physical relationship as density, the connection between mass and volume, but expressed as its mathematical inverse, volume per unit of mass rather than mass per unit of volume, meaning a material with a high density automatically has a low specific volume and vice versa, since the two are reciprocals of each other by definition. This inverted framing exists because certain engineering disciplines, particularly thermodynamics and fluid mechanics dealing with gases and refrigerants, find it more natural to think in terms of how much volume a given mass of substance occupies, especially since gas volume changes dramatically with pressure and temperature in ways that are often more intuitively tracked through specific volume than through density directly. Converting specific volume between unit systems follows exactly the same combined mass-and-volume-unit logic as density conversion, simply applied to the inverted ratio, which means anyone comfortable converting density between metric and imperial units already understands the full logic needed for specific volume conversion as well, just flipped the other way around.