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Convert kilowatt to milliwatt

Here you can quickly calculate how many milliwatt fit in one kilowatt.

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  • 1 kW = 1000000 mW
  • 1 mW = 0.000001 kW

Kilowatt to milliwatt conversion table

kilowatt milliwatt
1 1000000
2 2000000
5 5000000
10 10000000
20 20000000
50 50000000
100 100000000

Kilowatt to milliwatt formula

To convert kilowatt to milliwatt, multiply by 1000000.

1 kW = 1000000 mW
Example: 1 kilowatt = 1000000 milliwatt

Common power conversion mistakes

  • '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.
  • 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.

Quick kilowatt and milliwatt conversion quiz

Score: 0

1 kilowatt equals 1.0e+7 milliwatt.

Correct answer: 1 kilowatt = 1.0e+6 milliwatt.

25 milliwatt equals 5.0e-6 kilowatt.

Correct answer: 25 milliwatt = 2.5e-5 kilowatt.

2 milliwatt equals 2.0e-6 kilowatt.

Correct answer: 2 milliwatt = 2.0e-6 kilowatt.

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