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Milliwatt to Watt
Convert Milliwatt to Watt and get the exact value instantly.
About this conversion
To convert Milliwatt to Watt, multiply the number of Milliwatt by 0.001.
Power is measured in watts, kilowatts or horsepower, so comparing an engine, a motor and an appliance usually means converting to one shared unit first.
Conversion table
| Milliwatt (mW) | Watt (W) |
|---|---|
| 1 mW | 0.001 W |
| 2 mW | 0.002 W |
| 5 mW | 0.005 W |
| 10 mW | 0.01 W |
| 100 mW | 0.1 W |
How to use this converter
- Enter your Milliwatt value
Type any number into the Milliwatt field. It starts at 1 so you can read the rate straight away.
- Read the Watt result
The amount in Watt updates as you type, so there is no button to press and nothing to wait for.
- Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.
Frequently asked
- How many Watt are in one Milliwatt?
- One Milliwatt equals 0.001 W. Enter any amount above to get an exact figure for your own value.
- Is this converter accurate?
- Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
- Do you upload the numbers I enter?
- No. The Milliwatt to Watt conversion runs entirely in your browser tab, and nothing you type is sent to a server.
- Does it work on my phone?
- Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.
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