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Kelly Generator & Equipment, Inc.

Generator Sales, Service & Rentals — Serving Clients in Maryland, Pennsylvania, Delaware, Virginia, West Virginia and New Jersey

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Power Calculators

These power calculators can help you determine the size of generator required for your application and perform unit conversion. If you have any questions about generator sizing, please feel free to contact us at rentalsalesteam@kge.com. We’re happy to help.

Power Equipment Calculator (Amps to kW)

Power Equipment Calculator (kW to Amps)

Conversion Calculators

Convert kW to kVA

Convert kVA To kW

Convert HP to kW

Convert kW to HP

Convert HP to kVA

*DISCLAIMER: For projects involving complex electrical calculations, we strongly recommend consulting a certified electrician. The calculators provided on this page are intended for general estimation purposes only. If you have questions or would like support in evaluating your specific situation, please feel free to contact us at rentalsalesteam@kge.com.

Standard Electrical Formulas Used for Power Consumption Calculations

To DetermineSingle-PhaseThree-PhaseDirect Current
kVA(Volts × Amps) / 1000(Volts × Amps × √3) / 1000
kW(Volts x Amps x PF) / 1000(Volts × Amps x √3 × PF) / 1000(Volts x Amps) / 1000
Horsepower(Volts x Amps x %Eff x PF) / 746(Volts x Amps x √3 x %Eff x PF) / 746(Volts x Amps x %Eff) / 746
Amps (when HP is known)(HP x 746) / (Volts x %EFF x PF)(HP x 746) / (Volts x √3 x %EFF x PF)(HP x 746) / (Volts x %EFF)
Amps (when kW is known)(kW x 1000) / (Volts x PF)(kW x 1000) / (Volts x √3 x PF)(kW x 1000) / Volts
Amps (when KVA is known)(kVA x 1000) / Volts(kVA x 1000) / (Volts x √3)

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24/7 Emergency Response: 800.677.3815

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