Kilowatts (kW) to amps (A) calculator.

Select current type, enter power in kilowatts,voltage in volts, power factor for AC circuit and press the *Calculate* button (DC = Direct Current, AC = Alternating Current):

### DC kilowatts to amps calculation

The current *I* in amps (A) is equal to 1000 times the power *P* in kilowatts (kW), divided by the voltage *V* in volts (V):

* I*_{(A)} = 1000* *×* P*_{(kW)} / * V*_{(V)}

### AC single phase kilowatts to amps calculation

The phase current *I* in amps (A) is equal to 1000 times the power *P* in kilowatts (kW), divided by the power factor *PF* times the RMS voltage *V* in volts (V):

* I*_{(A)} = 1000* *×* P*_{(kW)} / (*PF* × * V*_{(V)}* *)

### AC three phase kilowatts to amps calculation

#### Calculation with line to line voltage

The phase current *I* in amps (A) is equal to 1000 times the power *P* in kilowatts (kW), divided by square root of 3 times the power factor *PF* times the line to line RMS voltage *V*_{L-L} in volts (V):

* I*_{(A)} = 1000* *×* P*_{(kW)} / (*√*3 × * PF* × * V*_{L-L(V)}* *)

#### Calculation with line to neutral voltage

The phase current *I* in amps (A) is equal to 1000 times the power *P* in kilowatts (kW), divided by 3 times the power factor *PF* times the line to neutral RMS voltage *V*_{L-N} in volts (V):

* I*_{(A)} = 1000* *×* P*_{(kW)} / (3 × * PF* × * V*_{L-N(V)}* *)

### Typical power factor values

Do not use typical power factor values for accurate calculations.

Device | Typical power factor |
---|---|

Resistive load | 1 |

Fluorecent lamp | 0.95 |

Incandescent lamp | 1 |

Induction motor full load | 0.85 |

Induction motor no load | 0.35 |

Resistive oven | 1 |

Synchronous motor | 0.9 |

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