Electrical Power Calculators /

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Electrical Power Calculators

The following calculators are provided to help you determine the size of generator required for your specific application.  Other calculators on this page are for unit conversions and other power related calculations.
Calculators
 Power Reqt Calculator
 Converting kW to kVA
 Converting kVA to kW
 Converting kW to HP
 kVA Reqd. to run motors
 Amperes when kVA known     
Guide to Standard Units
Kilo Volt Amperes
kVA
KiloWatts (1000 watts = 1 kW)
kW
Ampere (Volt-Amperes or Current)
I
Volts
E
Power Factor
PE
Percent Efficiency
%EFF
Horse Power
HP

  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 of
Motor
= Generator
kVA Required

  Calculating Amperes (when you know kVA)
Phase
1,2,3
Generator
kVA
Volts
Required
= Ampere
I