Watt to Milliwatt (W to mW)
Convert W to mW — Power converter
One watt equals 1000 mW, so to convert watts to milliwatts you multiply the value by 1000. A watt is larger than a milliwatt — going the other way, 1 mW = 0.001 W. For example, 10 W = 10000 mW and 50 W = 50000 mW.
1000Click to copy
1 W = 1000 mW
Watt to Milliwatt formula
1 Watt = 1000 mW
Worked examples
- 25 W = 25000 mW
- 100 W = 100000 mW
Watt to Milliwatt conversion table
| Watt (W) | Milliwatt (mW) |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 3 | 3000 |
| 5 | 5000 |
| 8 | 8000 |
| 10 | 10000 |
| 12 | 12000 |
| 15 | 15000 |
| 20 | 20000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 250 | 250000 |
| 500 | 500000 |
| 1000 | 1000000 |
Frequently asked questions
How many milliwatts are in one watt?
One watt equals 1000 milliwatts (mW).
How many watts are in one milliwatt?
One milliwatt equals 0.001 watts (W).
How do you convert watts to milliwatts?
1 Watt = 1000 mW. Use the calculator above for any value.
What is 5 W in mW?
5 W = 5000 mW.
What is 100 W in mW?
100 W = 100000 mW.
What is 10 W in mW?
10 W = 10000 mW.
What is 20 W in mW?
20 W = 20000 mW.
Is a watt bigger than a milliwatt?
Yes. A watt is larger — one watt equals 1000 milliwatts (mW).