Power Calculator Power Requirement Calculator Phase Volts Required V Amperes I Power Factor = Power kW 1 3 .8 1.0 Converting kW to kVA kW = kVA Converting kVA to kW kVA = kW Converting kW to HP kW = HP What size genset is needed to start a 3 phase electric motor Direct on Line (DOL) start HP ofMotor = GeneratorkVA Required Calculating Amperes when you know the kVA Phase1,2,3 GeneratorkVA VoltsRequired = Ampere I Other Links: Diesel Fuel Usage Chart Natural Envirocom Usage Chart