# Watts to Amps Electrical Conversion Calculator

## Convert Watts and Volts to Amps

## Convert Amps and Volts to Watts

## How to Convert Watts to Amps

Converting watts to amps can be done using the Watt’s Law formula, which states that I = P ÷ E, where P is power measured in watts, I is current measured in amps, and E is voltage measured in volts.

Given this, to find amps given power and voltage use the following formula:

amps = watts ÷ volts

**For example**, find the amperage of 1200 watts at 120 volts

current = power ÷ voltage

current = 1200W ÷ 120V

current = 10A

It is also possible to convert watts to amps if the resistance of the circuit is known using the formula:

amps = √(watts × ohms)

It is not possible to convert watts directly to amps without also knowing voltage or resistance.

## How to Convert Amps to Watts

It is also possible to convert amps to watts using the Watt’s Law formula. The formula to convert watts to amps can be converted using algebra to also read:

watts = amps × volts

Thus, to find the power, or wattage, simply multiply the current in amps by the voltage.

**For example**, find the wattage of 8 amps at 120 volts

power = current × voltage

power = 8A × 120V

power = 960W

1 kilowatt is equal to 1,000 watts, thus it is possible to use the formulas above to also convert kW to amps, but watts need to be converted to kW first. Use our kW to amps calculator to solve for kilowatts.

## Equivalent Watts and Amps at 120V AC

Power | Current | Voltage |
---|---|---|

50 Watts | 0.4167 Amps | 120 Volts |

100 Watts | 0.8333 Amps | 120 Volts |

150 Watts | 1.25 Amps | 120 Volts |

200 Watts | 1.667 Amps | 120 Volts |

250 Watts | 2.083 Amps | 120 Volts |

300 Watts | 2.5 Amps | 120 Volts |

350 Watts | 2.917 Amps | 120 Volts |

400 Watts | 3.333 Amps | 120 Volts |

450 Watts | 3.75 Amps | 120 Volts |

500 Watts | 4.167 Amps | 120 Volts |

600 Watts | 5 Amps | 120 Volts |

700 Watts | 5.833 Amps | 120 Volts |

800 Watts | 6.667 Amps | 120 Volts |

900 Watts | 7.5 Amps | 120 Volts |

1000 Watts | 8.333 Amps | 120 Volts |

1100 Watts | 9.167 Amps | 120 Volts |

1200 Watts | 10 Amps | 120 Volts |

1300 Watts | 10.833 Amps | 120 Volts |

1400 Watts | 11.667 Amps | 120 Volts |

1500 Watts | 12.5 Amps | 120 Volts |

1600 Watts | 13.333 Amps | 120 Volts |

1700 Watts | 14.167 Amps | 120 Volts |

1800 Watts | 15 Amps | 120 Volts |

1900 Watts | 15.833 Amps | 120 Volts |

2000 Watts | 16.667 Amps | 120 Volts |

2100 Watts | 17.5 Amps | 120 Volts |

2200 Watts | 18.333 Amps | 120 Volts |

2300 Watts | 19.167 Amps | 120 Volts |

2400 Watts | 20 Amps | 120 Volts |

2500 Watts | 20.833 Amps | 120 Volts |

## Equivalent Watts and Amps at 12V DC

Power | Current | Voltage |
---|---|---|

5 Watts | 0.4167 Amps | 12 Volts |

10 Watts | 0.8333 Amps | 12 Volts |

15 Watts | 1.25 Amps | 12 Volts |

20 Watts | 1.667 Amps | 12 Volts |

25 Watts | 2.083 Amps | 12 Volts |

30 Watts | 2.5 Amps | 12 Volts |

35 Watts | 2.917 Amps | 12 Volts |

40 Watts | 3.333 Amps | 12 Volts |

45 Watts | 3.75 Amps | 12 Volts |

50 Watts | 4.167 Amps | 12 Volts |

60 Watts | 5 Amps | 12 Volts |

70 Watts | 5.833 Amps | 12 Volts |

80 Watts | 6.667 Amps | 12 Volts |

90 Watts | 7.5 Amps | 12 Volts |

100 Watts | 8.333 Amps | 12 Volts |

110 Watts | 9.167 Amps | 12 Volts |

120 Watts | 10 Amps | 12 Volts |

130 Watts | 10.833 Amps | 12 Volts |

140 Watts | 11.667 Amps | 12 Volts |

150 Watts | 12.5 Amps | 12 Volts |

160 Watts | 13.333 Amps | 12 Volts |

170 Watts | 14.167 Amps | 12 Volts |

180 Watts | 15 Amps | 12 Volts |

190 Watts | 15.833 Amps | 12 Volts |

200 Watts | 16.667 Amps | 12 Volts |

210 Watts | 17.5 Amps | 12 Volts |

220 Watts | 18.333 Amps | 12 Volts |

230 Watts | 19.167 Amps | 12 Volts |

240 Watts | 20 Amps | 12 Volts |

250 Watts | 20.833 Amps | 12 Volts |