Milliwatts to watts
Type a value in mW to get it in W instantly.
0.1W
Nothing on our list is smaller: an LED bulb is 80× more. That is about 4.545×10⁻⁵ electric kettles running at once.
What it means
What could that run?
Appliance figures are typical. Car output is quoted at the engine, before losses through the gearbox.
The math
How to convert mW to W
To convert milliwatts to watts, multiply by 0.001.
Example: 100 mW × 0.001 = 0.1 W.
In the other direction, 1 W = 1,000 mW.
Every unit
Your power in every unit
Tables
mW to W conversion table
| mW | W |
|---|---|
| 1 mW | 0.001 W |
| 2 mW | 0.002 W |
| 5 mW | 0.005 W |
| 10 mW | 0.01 W |
| 20 mW | 0.02 W |
| 25 mW | 0.025 W |
| 50 mW | 0.05 W |
| 75 mW | 0.075 W |
| 100 mW | 0.1 W |
| 150 mW | 0.15 W |
| 200 mW | 0.2 W |
| 250 mW | 0.25 W |
| 500 mW | 0.5 W |
| 1,000 mW | 1 W |
W to mW conversion table
| W | mW |
|---|---|
| 1 W | 1,000 mW |
| 2 W | 2,000 mW |
| 5 W | 5,000 mW |
| 10 W | 10,000 mW |
| 20 W | 20,000 mW |
| 25 W | 25,000 mW |
| 50 W | 50,000 mW |
| 75 W | 75,000 mW |
| 100 W | 100,000 mW |
| 150 W | 150,000 mW |
| 200 W | 200,000 mW |
| 250 W | 250,000 mW |
| 500 W | 500,000 mW |
| 1,000 W | 1,000,000 mW |
Quick answers
Quick answers
- How many W is 1 mW?
- 1 mW is 0.001 W.
- How many W is 10 mW?
- 10 mW is 0.01 W.
- How many W is 100 mW?
- 100 mW is 0.1 W.
The units
About these units
Milliwatts (mW)
A milliwatt is a thousandth of a watt. Lasers, radio transmitters and sensors are rated in milliwatts.
Watts (W)
The watt is the SI unit of power: one joule per second. An LED bulb draws about 8 W, a phone charger about 20 W.
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