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Convert Watts to Kilowatts

One watt equals 0.001 kilowatts. Type any value to convert watts to kilowatts instantly — with a full reference table below.

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Convert Watts to Kilowatts

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Formula

How to convert Watts to Kilowatts

To convert watts to kilowatts, multiply by 0.001. One watt equals 0.001 kW, and one kilowatt equals 1,000 W.

  1. Take the value in watts — for example 7.5 W.
  2. Multiply by 0.001 (the number of kilowatts in one watt).
  3. 7.5 × 0.001 = 0.0075 kW.

Shortcut: the factor is a power of ten, so just move the decimal point 3 places to the left.

Watts to Kilowatts conversion table

WattsKilowatts
1 W0.001 kW
2 W0.002 kW
5 W0.005 kW
10 W0.01 kW
20 W0.02 kW
50 W0.05 kW
100 W0.1 kW
200 W0.2 kW
500 W0.5 kW
1,000 W1 kW
KilowattsWatts
1 kW1,000 W
2 kW2,000 W
5 kW5,000 W
10 kW10,000 W
20 kW20,000 W
50 kW50,000 W
100 kW100,000 W
200 kW200,000 W
500 kW500,000 W
1,000 kW1,000,000 W

About converting Watts to Kilowatts

Watts (W) and Kilowatts (kW) are both units of power. The exact factor is 1 W = 0.001 kW, so multiply by 0.001 to go from watts to kilowatts (or divide to go back).

The conversion runs entirely in your browser. Need the reverse? Use the Kilowatts to Watts converter, or the full unit converter for every unit at once.

Real-world power in watts and kilowatts

ExampleWattsKilowatts
A resting human body≈ 100 W≈ 0.1 kW
A microwave oven≈ 1,000 W≈ 1 kW
A UK electric kettle≈ 3,000 W≈ 3 kW
A 150 hp car engine111,855 W111.855 kW

“≈” marks typical values; the rest are defined or measured figures.

The units

Watts (W)

The SI unit of power: one joule per second.

Used for: Appliances, light bulbs and electronics.

Kilowatts (kW)

1,000 watts.

Used for: Engines, heaters, solar panels and EV charging.

This page uses mechanical horsepower (550 foot-pounds per second ≈ 745.7 W). Metric horsepower (PS) is slightly smaller at 735.5 W.

Frequently asked questions

5 answers
How many kilowatts are in one watt?
One watt equals 0.001 kilowatts.
How do I convert watts to kilowatts?
Multiply the number of watts by 0.001. For example, 10 watts = 0.01 kilowatts.
What is 5 watts in kilowatts?
5 watts is 0.005 kilowatts.
Is a watt bigger than a kilowatt?
No. One watt is 0.001 of a kilowatt — it takes 1,000 watts to make one kilowatt.
How many kilowatts is a UK electric kettle?
A UK electric kettle is about 3 kilowatts (about 3,000 watts).