Electric power in watts (W) to electric current in amps (A) calculator.

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

So The current I in amps (A) is equal to the power P in watts (W), divided by the voltage V in volts (V).

*I*_{(A)} = *P*_{(W)}* */* V*_{(V)}

What is the current in amps when the power consumption is 330 watts and the voltage supply is 120 volts?

*I* = 330W / 120V = 2.75A

What is the current in amps when the power consumption is 330 watts and the voltage supply is 140 volts?

*I* = 330W / 140V = 2.35A

So The phase current I in amps (A) is equal to the power P in watts (W), divided by the power factor PF times the RMS voltage V in volts (V).

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

So The power factor of resistive impedance load is equal to [1].

What is the phase current in amps when the power consumption is 330 watts, the power factor is 0.8 and the RMS voltage supply is 120 volts?

*I* = 330W / (0.8 × 120V) = 3.4375A

What is the phase current in amps when the power consumption is 330 watts, the power factor is 0.8 and the RMS voltage supply is 150 volts?

*I* = 330W / (0.8 × 150V) = 2.75A

So The phase current I in amps (A) is equal to the power P in watts (W), 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)} = *P*_{(W)} / (*√*3 × *PF* × *V*_{L-L(V)}* *)

So The power factor of resistive impedance load is equal to [1].

What is the phase current in amps when the power consumption is 330 watts, the power factor is 0.8 and the RMS voltage supply is 120 volts?

*I* = 330W / (*√*3 × 0.8 × 120V) = 1.984A

What is the phase current in amps when the power consumption is 330 watts, the power factor is 0.8 and the RMS voltage supply is 140 volts?

*I* = 330W / (*√*3 × 0.8 × 140V) = 1.701A

So The phase current I in amps (A) is equal to the power P in watts (W), divided by 3 times the power factor PF times the line to neutral RMS voltage V_{L-N} in volts (V).

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

So The power factor of resistive impedance load is equal to [1].

Do not use typical power factor values for accurate calculations.

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

Resistive load | 1 |

Fluorescent 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 |

Power (W) | Voltage (V) | Current (A) |
---|---|---|

10 watts | 120 volts | 0.0833 amps |

20 watts | 120 volts | 0.167 amps |

30 watts | 120 volts | 0.250 amps |

40 watts | 120 volts | 0.333 amps |

50 watts | 120 volts | 0.417 amps |

60 watts | 120 volts | 0.500 amps |

70 watts | 120 volts | 0.583 amps |

80 watts | 120 volts | 0.667 amps |

90 watts | 120 volts | 0.750 amps |

100 watts | 120 volts | 0.833 amps |

200 watts | 120 volts | 1.667 amps |

300 watts | 120 volts | 2.500 amps |

400 watts | 120 volts | 3.333 amps |

500 watts | 120 volts | 4.167 amps |

600 watts | 120 volts | 5.000 amps |

700 watts | 120 volts | 5.833 amps |

800 watts | 120 volts | 6.666 amps |

900 watts | 120 volts | 7.500 amps |

1000 watts | 120 volts | 8.333 amps |

- How to convert watts to amps
- Amps to watts calculator
- kW to amps calculator
- Ohm's law calculator
- Ampere (A)
- Volt (V)
- Watt (W)
- Power factor
- Electrical calculation
- Power conversion

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