liter/kilogram [L/kg] Unit Converter

Definition of liter/kilogram [L/kg] unit

Liter per kilogram (L/kg) is a unit of specific volume, expressing the volume occupied by one kilogram of a substance. It equals 0.001 cubic meters per kilogram (m³/kg) and is the reciprocal of density measured in kg/L.

History of liter/kilogram [L/kg] unit

The liter originated from the metric system established in France during the late eighteenth century and was initially defined in relation to the cubic decimeter. The kilogram was introduced as a metric unit of mass based on water and later standardized internationally. Combining these units produced liter per kilogram, a practical expression of specific volume. It became useful in science and engineering, especially when describing gases, fuels, oils, and porous materials. Modern metrology ties the liter exactly to the cubic meter, while the kilogram is defined through the SI system.

Applications of liter/kilogram [L/kg] unit

Liter per kilogram is used to report specific volume in thermodynamics, fluid mechanics, chemistry, and process engineering. It is convenient for gases, refrigerants, fuels, and petroleum products, where volumes are relatively large compared with mass. For example, a gas may have a specific volume of several L/kg, while liquids typically have much smaller values.

Complete list of liter/kilogram [L/kg] unit conversion