About this converter
Specific volume is the volume occupied by one unit of mass. Cubic meter per kilogram (m³/kg) is the SI unit, and 1 cubic centimeter per gram equals 0.001 m³/kg. Specific volume is the reciprocal of density, so a material with density 2 kg/m³ has a specific volume of 0.5 m³/kg.
This converter supports SI, metric, US customary, and imperial specific volume units. Thermodynamics students, process engineers, HVAC designers, fluid mechanics instructors, and materials engineers use these conversions when reading steam tables, gas properties, density data, and process simulation outputs.
How to Use This Converter
- Enter the specific volume value.
- Select the source unit from the From menu.
- Select the target unit from the To menu.
- Read the converted result and formula line.
- Use Swap to reverse the selected units.
Units Covered
| Unit | Symbol | Common Use |
|---|---|---|
| Cubic meter per kilogram | m³/kg | SI thermodynamics, steam tables, and process calculations. |
| Cubic centimeter per gram | cm³/g | Materials data, lab measurements, and density-reciprocal checks. |
| Liter per kilogram | L/kg | Fluid properties and metric process engineering. |
| Liter per gram | L/g | High specific-volume values and laboratory contexts. |
| Cubic foot per kilogram | ft³/kg | Mixed SI-customary gas and ventilation calculations. |
| Cubic foot per pound | ft³/lb | US thermodynamics, HVAC, and gas property tables. |
| US gallon per pound | galuslb | US liquid-volume references per pound of mass. |
| UK gallon per pound | galuklb | Imperial liquid-volume references per pound of mass. |
m³/kg to ft³/lb Conversion Table
| From | To |
|---|---|
| 0.001 m³/kg | 0.0160185 ft³/lb |
| 0.01 m³/kg | 0.160185 ft³/lb |
| 0.05 m³/kg | 0.800923 ft³/lb |
| 0.1 m³/kg | 1.60185 ft³/lb |
| 0.5 m³/kg | 8.00923 ft³/lb |
| 1 m³/kg | 16.0185 ft³/lb |
| 2 m³/kg | 32.0369 ft³/lb |
| 5 m³/kg | 80.0923 ft³/lb |
| 10 m³/kg | 160.185 ft³/lb |
| 25 m³/kg | 400.461 ft³/lb |
How to Convert m³/kg to ft³/lb
Cubic meters per kilogram to cubic feet per pound
For example, 0.25 m³/kg / 0.0624279606 = 4.00461 ft³/lb.
Cubic feet per pound to cubic meters per kilogram
For example, 12 ft³/lb x 0.0624279606 = 0.749136 m³/kg.
When You Need to Convert Specific Volume
Steam tables and thermodynamics textbooks may report specific volume in m³/kg, while US HVAC references often use ft³/lb. A value of 0.8 m³/kg equals 12.8148 ft³/lb, allowing engineers to compare the same state point across references.
Process engineers use specific volume when sizing vessels, compressors, and gas lines. If 20 kg of gas has a specific volume of 0.3 m³/kg, the occupied volume is 6 m³ before applying safety or operating margins.
Specific volume also helps connect density data to volume calculations. A liquid with density 800 kg/m³ has a specific volume of 0.00125 m³/kg, which can be converted to 0.0200231 ft³/lb for US customary documentation.