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## How to convert watts to milliwatts (W to mW)

The formula for converting watts to milliwatts is: mW = W × 1000. To calculate the watt value in milliwatts first substitute the watt value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 watt in milliwatts we follow these steps:

mW = W × 1000

m1 = W × 1000

mW = 1000

In other words, 1 watt is equal to 1000 milliwatts.

## Example Conversion

Let's take a look at an example. The step-by-step process to convert 4 watts to milliwatts is:

- Understand the conversion formula: mW = W × 1000
- Substitute the required value. In this case we substitute 4 for W so the formula becomes: m4 = W × 1000
- Calculate the result using the provided values. In our example the result is: 4 × 1000 = 4000 mW

In summary, 4 watts is equal to 4000 milliwatts.

## Converting milliwatts to watts

In order to convert the other way around i.e. milliwatts to watts, you would use the following formula: W = mW × 0.001. To convert milliwatts to watts first substitute the milliwatt value into the above formula, and then execute the calculation. If we wanted to calculate 1 milliwatt in watts we follow these steps:

W = mW × 0.001

W = 1 × 0.001

W = 0.001

Or in other words, 1 milliwatt is equal to 0.001 watts.

## Conversion Unit Definitions

### What is a Watt?

### What is a Milliwatt?

## Watts To Milliwatts Conversion Table

Below is a lookup table showing common watts to milliwatts conversion values.

Watt (W) | Milliwatt (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 |

11 W | 11000 mW |

12 W | 12000 mW |

13 W | 13000 mW |