Electrical power conversion

kW, kVA & Current Calculator

Convert between real power, apparent power and current for single-phase or three-phase loads using an entered power factor.

Enter your values

Example values demonstrate the method; they are not product recommendations.

Your result

Enter measured or nameplate values to calculate.

Method

kW = kVA × power factor. Apparent power is V × A for single-phase and √3 × line voltage × line current for balanced three-phase loads.

Important limits

Balanced-load screening only. Do not use the result to choose conductors, breakers, protection or equipment ratings.

Technical reference

Use this calculator to convert between kW, kVA and current for a single-phase or three-phase system using voltage and power factor. Enter values that match the circuit or equipment you are checking and keep all units consistent.

What to enter

Select the correct phase arrangement and use the applicable voltage and power factor. Enter the known kW, kVA or current value required by the calculator. The template controls the actual fields and calculations; this supporting copy does not replace its labels, formulas or result logic.

How to use the result

Treat the converted value as a planning reference. It depends on the accuracy of the voltage, power factor and phase information entered. A conversion result alone does not confirm cable size, protection rating, starting current, equipment efficiency or installation suitability.

Before applying the value

Verify the equipment nameplate, supply configuration and operating conditions. Have a qualified electrical professional check the final load assessment, conductor selection and protection before purchase, wiring or energisation.