Electrical Motor Calculator Horsepower (HP) when Current (Amps) is known:Motor Type*Direct CurrentSingle PhaseThree PhaseVoltage*Motor Current (Amps)*Efficiency (%)*Power Factor*Motor HorsepowerCurrent (Amps) when Horsepower (HP) is known:Motor Type*Direct CurrentSingle PhaseThree PhaseHorsepower*Efficiency (%)*Voltage*Power Factor*Motor Current
