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Convert watt to kilowatt

Here you can quickly calculate how many kilowatt fit in one watt.
  • 1 W = 0.001 kW
  • 1 kW = 1000 W

Watt to kilowatt conversion table

watt kilowatt
1 0.001
2 0.002
5 0.005
10 0.01
20 0.02
50 0.05
100 0.1

Watt to kilowatt formula

To convert watt to kilowatt, divide by 1000.

1 W = 0.001 kW
Example: 1 watt = 0.001 kilowatt

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.
  • '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 watt and kilowatt conversion quiz

Score: 0

11 watt equals 0.011 kilowatt.

Correct answer: 11 watt = 0.011 kilowatt.

226 watt equals 0.136 kilowatt.

Correct answer: 226 watt = 0.226 kilowatt.

23 kilowatt equals 4.6e+4 watt.

Correct answer: 23 kilowatt = 2.3e+4 watt.

99 kilowatt equals 1.98e+5 watt.

Correct answer: 99 kilowatt = 9.9e+4 watt.

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