To convert from VA to kVA just divide by 1000.
Note: you can do these equations in either VA, V and A or kVA, kV and kA depending on the magnitude of the parameters you are dealing with. As an example, consider a load consuming 23 kW of power at 230 V and a power factor of 0.86:
The current is simply the kVA divided by the voltage. Given the kW and power factor the kVA can be easily worked out. Single phase system - this is the easiest to deal with.
The relationship between kVA and kW is the power factor (pf): The product of the voltage and current is the apparent power and measured in VA (or kVA). The power taken by a circuit (single or three phase) is measured in watts W (or kW).
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