Convert Milliwatts to Watts
1 milliwatt = 0.001 watts. Multiply the number of milliwatts by 0.001.
Result
1 mW = 0.001 W
Multiply the number of milliwatts by 0.001.
Results are rounded for display. Double-check values for critical work.
Milliwatts to Watts table
| Milliwatts | Watts |
|---|---|
| 1 mW | 0.001 W |
| 2 mW | 0.002 W |
| 3 mW | 0.003 W |
| 4 mW | 0.004 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 |
| 100 mW | 0.1 W |
| 500 mW | 0.5 W |
| 1000 mW | 1 W |
About these units
The milliwatt (mW) is a metric unit of power, equal to 0.001 watts.
The watt (W) is an SI base or derived unit of power.
Going the other way, 1 watt = 1,000 milliwatts. Power is energy per unit time — engine output in horsepower, air-conditioning capacity in tons, appliance draw in watts. All of them convert cleanly through the watt.
Frequently asked
- How many watts are in a milliwatt?
- 1 milliwatt = 0.001 watts.
- How do you convert milliwatts to watts?
- Multiply the number of milliwatts by 0.001.
- What is 10 mW in W?
- 10 mW = 0.01 W.