Horsepower Calculation, HP

Three Phase HP = (E X I X EFF X PF X 1.732) / 746

Single Phase HP = (E X I X EFF X PF) / 746

Direct Current HP = (E X I X EFF) / 746

Voltage, "E"
Amperes, "I"
Efficiency, "EFF"
Power Factor, "PF"

NOTE: PF is ignored for the direct current calculation.