Boyle's law (also as the Boyle-Mariotte law) is one of several gas laws and a special case of the ideal gas law. The law was named after chemist and physicist Robert Boyle who published the original law in 1662.

The law stated that for a fixed amount of an ideal gas kept at a fixed temperature, it's pressure and volume are inversely proportional.

Boyle's law formula can be expressed as follows:
    P_iV_i = P_fV_f
Where:
P_i : Pressure of the initiate state
V_i : Volume of the initiate state
P_f : Pressure of the final state
V_f : Volume of the final state