There is provided a power factor correction device including, a first switch switching input power to adjust a phase difference between a current and a voltage of the input power, a second switch switched on before the first switch is switched on to form a transfer path for residual power in the first switch, a first inductor charging and discharging energy according to switching of the first switch, and a second inductor adjusting an amount of current flowing through the second switch according to switching of the second switch, wherein the first inductor and the second inductor are inductively coupled.