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Watts (W) and milliwatts (mW) are units of measurement used to quantify power or the rate at which energy is transferred or used. Here’s a brief explanation of each:

## Watts (W)

Watt is the base unit of power in the International System of Units (SI). It represents the rate at which energy is generated or consumed in an electrical circuit. One watt is equal to one joule of energy transferred per second. Watts are commonly used to measure the power of electrical devices, light bulbs, motors, and other energy-consuming equipment.

## Milliwatts (mW)

Milliwatt is a subunit of the watt and represents one-thousandth of a watt. It is often used for small-scale measurements of power, especially in low-power electronic devices. For example, a small LED might have a power rating of a few milliwatts.

### How to convert watts to milliwatts

1W = 1000mW

Watts to milliwatts conversion formula

**P _{(mW)} = 1000 ⋅ P_{(W)}**

Example- Convert 4W to milliwatts

Ans. P_{(mW)} = 1000 ⋅ 4W = 4000mW

**Also read: **

### Watts to milliwatts conversion table

Power (W) |
Power (mW) |

0.001 W | 1 mW |

0.01 W | 10 mW |

0.1 W | 100 mW |

1 W | 1000 mW |

2 W | 2000 mW |

3 W | 3000 mW |

4 W | 4000 mW |

5 W | 5000 mW |

6 W | 6000 mW |

7 W | 7000 mW |

8 W | 8000 mW |

9 W | 9000 mW |

10 W | 10000 mW |

20 W | 20000 mW |

30 W | 30000 mW |

40 W | 40000 mW |

50 W | 50000 mW |

60 W | 60000 mW |

70 W | 70000 mW |

80 W | 80000 mW |

90 W | 90000 mW |

100 W | 100000 mW |

200 W | 200000 mW |

300 W | 300000 mW |

400 W | 400000 mW |

500 W | 500000 mW |

600 W | 600000 mW |

700 W | 700000 mW |

800 W | 800000 mW |

900 W | 900000 mW |

1000 W | 1000000 mW |

## FAQs on Watts to milliwatts conversion

### What is 1 milliwatt in watts?

1 milliwatt (mW) is equal to 0.001 watts (W).

### How do you convert power to milliwatts?

To convert power to milliwatts, simply multiply the power value by 1000.

### How do you calculate milliwatts?

To calculate milliwatts, you can use the formula: Milliwatts (mW) = Watts (W) * 1000.

### How many units is 1 mW?

1 milliwatt (mW) is equal to one-thousandth of a watt (W).

### What is the formula of 1 watt?

The formula for 1 watt (W) is simply 1 watt. In other words, 1 watt is equal to 1 watt. It is the base unit of power in the International System of Units (SI).