Convert Watts to Milliwatts
1 watt = 1,000 milliwatts. Multiply the number of watts by 1000.
Result
1 W = 1,000 mW
Multiply the number of watts by 1000.
Results are rounded for display. Double-check values for critical work.
Watts to Milliwatts table
| Watts | Milliwatts |
|---|---|
| 1 W | 1,000 mW |
| 2 W | 2,000 mW |
| 3 W | 3,000 mW |
| 4 W | 4,000 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 |
| 100 W | 100,000 mW |
| 500 W | 500,000 mW |
| 1000 W | 1,000,000 mW |
About these units
The watt (W) is an SI base or derived unit of power.
The milliwatt (mW) is a metric unit of power, equal to 0.001 watts.
Going the other way, 1 milliwatt = 0.001 watts. 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 milliwatts are in a watt?
- 1 watt = 1,000 milliwatts.
- How do you convert watts to milliwatts?
- Multiply the number of watts by 1000.
- What is 10 W in mW?
- 10 W = 10,000 mW.