Power

W to kW conversion

Convert watt (W) to kilowatt (kW). Power is energy per unit time — the rating of pumps, compressors, motors, and heat duties.

1 W = 0.001 kW

Formula

To convert watt to kilowatt, multiply the W value by 0.001. To go the other way, divide by 0.001 (or multiply by 1000).

W to kW conversion table

WkW
10.001
20.002
50.005
100.01
250.025
500.05
1000.1
2500.25
5000.5
10001

Used in practice

Rotating-equipment duties are quoted in kW or hp; heat duties in kW, MW, or BTU/hr.

Electrical input, shaft power, and hydraulic power differ by the efficiencies between them — label which one a number refers to.

Worked example. A power of 100000 W is 100 kW.

Frequently asked questions

How do you convert watt to kilowatt?

Multiply the value in W by 0.001 to get kW. For example, 10 W = 0.01 kW.

What is 1 W in kW?

1 W equals 0.001 kW.

Where is this conversion used?

Rotating-equipment duties are quoted in kW or hp; heat duties in kW, MW, or BTU/hr.

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