## How to Calculate kVA

For single phase kVA calculations or conversions we need to know two of the three values of kVA, Volts and Amps. Calculations could be kVA from Amps and Volts, Amps from kVA and Volts or Volts from kVA and Amps.

For three phase kVA calculations we also need to know the Power Factor and kW values.

There are a number of kVA formulas which maybe difficult to remember them all, in which case you may like to download our kVA Calculator App.

__kVA Single Phase Calculations__

## kVA calculation formula

## kVA to Amps Formula

To convert kVA to Amps we use this formula (single phase)

**Amps = kVA x 1000 / Volts**

*Example: If kVA = 4.6 and voltage = 230 then the calculation would be 4.6 x 1000 / 230 = 20 Amps*

## Amps to kVA Formula

To convert Amps to kVA we use this formula (single phase)

**kVA = Amps x Volts / 1000**

*Example: If amps = 15 and volts = 120 the calculation would be 15 x 120 / 1000 = 1.8 kVA*

## Volts to kVA Formula

To calculate the voltage from kVA there is this formula (single phase)

**Volts = kVA x 1000 / Amps**

*Example: If kVA = 40 and amps = 10 then the calculation is 40 x 1000 x 10 = 4000 volts*

__kVA Three Phase Calculations__

## Three Phase kVA to Amps Calculation

Calculating Amps from kVA Three Phase

**Amps = kVA / **** Volts / 1.732 x 1000**

*Example: If kVA = 50 and volts= 400 then the calculation would be 50 / 400 / 1.732 * 1000 = 72.17 Amps*

## Three Phase Amps to kVA Calculation

Calculating Three Phase kVA from Amps formula

**kVA = Amps x Volts x 1.732 / 1000**

*Example: So if Amps = 25 and volts = 400 then 25 x 400 x 1.732 / 1000 = 17.32 kVA*

## Three Phase Volts to kVA Calculation

Calculating Three Phase Volts from kVA formula

**Volts = kVA / Amps / 1.732 x 1000**

*Example: So if kVA= 32 and amps = 63 then the calculation would be 32 / 63 / 1.732 x 100 = 293 Amps*

__kVA to kW to Power Factor Formula__

To calculate to or from kVA, kW or Power Factor (PF) we have the following calculations

**kVA = kW / Power Factor**

*Example: If kW = 5 and Power Factor = 0.8 then 5 / 0.8 = 6.25 kVA*

**kW = kVA x Power Factor**

*Example: If kVA = 14 and Power Factor = 0.7 then 14 x 0.7 = 9.8 kW
*

**PF = kW / kVA**

*Example: If kW = 15 and kVA = 25 then 15 / 25 = 0.6 Power Factor*