Convert milliwatt to watt
Here you can quickly calculate how many watt fit in one milliwatt.
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- 1 mW = 0.001 W
- 1 W = 1000 mW
Example: milliwatt to watt
- 1 milliwatt = 0.001 watt
Milliwatt to watt conversion table
| milliwatt | watt |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
Milliwatt to watt formula
To convert milliwatt to watt, divide by 1000.
1 mW = 0.001 W
Example: 1 milliwatt = 0.001 watt
Common power conversion mistakes
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'Kilowatts per hour' is a common slip of the tongue, power is measured in plain kilowatts. The kilowatt-hour (kWh) is energy: power multiplied by time. A machine draws 3 kW, and uses 3 kWh in one hour.
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American air conditioners are rated in BTU/h, European ones in watts, 1 kW is about 3,412 BTU/h. A '9,000 BTU' unit is therefore about 2.6 kW. Divide BTU/h by 3,412 to get kilowatts.
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'Calories burned per hour' is a power figure, not an amount of energy: 1 kcal/h is about 1.16 W. A run that burns 600 kcal in an hour corresponds to an average output of about 700 W.
Quick milliwatt and watt conversion quiz
Score:
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22 watt equals 3.3e+4 milliwatt.
Correct answer: 22 watt = 2.2e+4 milliwatt.
18.9 milliwatt equals 0.0189 watt.
Correct answer: 18.9 milliwatt = 0.0189 watt.
146 milliwatt equals 0.0876 watt.
Correct answer: 146 milliwatt = 0.146 watt.
1.4 watt equals 1.4e+3 milliwatt.
Correct answer: 1.4 watt = 1.4e+3 milliwatt.