The rate at which work is done is horse power (hp). It is a unit of measurement of power. Use our online DC motor horsepower calculator which helps to calculate the horsepower for dc (direct current) motor. Just enter voltage (E), current (I) in amp and efficiency (Eff) to calculate DC (direct current) motor Horsepower (HP).
Calculate direct current horse power having a voltage of 5 volts, current of 8 amp and efficiency of 6.
DC Motor HorsePower = (5 x 8 x 6) / 746
= 0.3217 Hp .