The Gas Compressibility Factor calculator computes the compressibility factor (Z), also known as the compression factor. This is the ratio of the molar volume of a gas to the molar volume of an ideal gas at the same temperature and pressure.
INSTRUCTIONS: Choose units and enter the following:
Compression Factor (Z): The calculator returns the compressibility factor (Z) as a real number.
`Z = (P*V_m)/(R*T)`
The compressibility factor is a useful thermodynamic property for modifying the
Alternatively, the compressibility factor for specific gases can be read from generalized compressibility charts that plot as a function of pressure at constant temperature.
 Compressibility factor Source: Wikipedia URL: