How to Convert Kilowatts to Amps. It is possible to convert kilowatts (kW) to amps using the Watt's Law power formula.The power formula states that current = power ÷ voltage.. To adapt the power formula to using kilowatts, first start by converting kilowatts to watts, which can be done by multiplying the power in kilowatts by 1,000 to get the number of watts.