This calculator is very useful for converting watts to amps with easily and quickly.

How to use this calculator first choose Select current type (DC = Direct Current, AC = Alternating Current Single Phase / Three Phase), then fill the Power in Watts, voltage and other values, then press the Calculate button to get the current result in Amps.

## How to Calculate Watts to Amps?

DC = Direct Current

**DC (W) to (A) calculation**

Formula I_{(A)} |
= | P_{(W)} |

V_{(V)} |

Current I in amps (A) equals to P in watts (W), divided by voltage V in volts.

AC = Alternating Current

**AC single phase (W) to (A) calculation**

Formula I_{(A)} |
= | P_{(W)} |

(PF x V_{(V)}) |

**AC three phase (W) to (A) calculation**

**Line to line voltage**

Formula I_{(A)} |
= | P_{(W)} |

(√3 × PF × V_{L-L(V)} ) |

**Line to neutral voltage**

Formula I_{(A)} |
= | P_{(W)} |

(3 × PF × V_{L-N(V)} ) |

power factor of resistive impedance load is equal to 1