## Amps to Watts Calculator

We are offering the electric current in amps (A) to electric power in watts (W) calculator, to help you in calculations, check now!

You are required to choose the enter current in amps, and the current type, voltage which is measured in volts, and the power factor for AC circuit and hit the = button where; DC is the Direct Current and AC is the Alternating Current.

* Use the value of e for the scientific notation. E.g: 4e-8, 1.45e12, 5e3

## DC amps to watts calculation

The value of power *P* in watts (W) is apparently equal to the value of current *I* measured in amps (A), multiplied by the voltage *V* measured in volts (V).

**P _{(W)} = I_{(A)} × V_{(V)}**

## AC single phase amps to watts calculation

The value of power *P* in watts (W) is apparently equal to the power factor *PF* times the phase current *I* in amps (A), times the RMS voltage *V* in volts (V).

**P _{(W)} = PF × I_{(A)} × V_{(V)}**

## AC three phase amps to watts calculation

#### Calculation with the line to line voltage

The value of power *P* in watts (W) is apparently equal to the square root of 3, multiplied by the power factor *PF* times the value of phase current *I* measured in amps (A), times the value of line to line RMS voltage *V*_{L-L} measured in volts (V).

**P _{(W)} = √3 × PF × I_{(A)} × V_{L-L(V)}**

#### Calculation with the line to neutral voltage

The power *P* measured in watts (W) is apparently equal to thrice the value of power factor *PF* times the phase current *I* measured in amps (A), times the value of line to neutral RMS voltage *V*_{L-N} measured in volts (V).

**P _{(W)} = 3 × PF × I_{(A)} × V_{L-N(V)}**

## Typical power factor values

You are advised not to use the typical power factor values for the value of accurate calculations.

Typical power factor | Device |

1 | Resistive load |

0.95 | Fluorecent lamp |

1 | Incandescent lamp |

0.85 | Induction motor full load |

0.35 | Induction motor no load |

1 | Resistive oven |

0.9 | Synchronous motor |