Watts to Kilowatts Converter

W → kW: type a value and the result appears instantly.

1 W = 0.001 kW
1 kW = 1,000 W

From

To

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How to convert watts to kilowatts

Use this formula:

kW = W × 0.001

Examples

5 W = 0.005 kW
12 W = 0.012 kW
100 W = 0.1 kW

W to kW conversion chart

watts (W)	kilowatts (kW)
0.1 W	0.0001 kW
0.25 W	0.00025 kW
0.5 W	0.0005 kW
1 W	0.001 kW
2 W	0.002 kW
3 W	0.003 kW
4 W	0.004 kW
5 W	0.005 kW
6 W	0.006 kW
7 W	0.007 kW
8 W	0.008 kW
9 W	0.009 kW
10 W	0.01 kW
12 W	0.012 kW
15 W	0.015 kW
20 W	0.02 kW
25 W	0.025 kW
30 W	0.03 kW
40 W	0.04 kW
50 W	0.05 kW
60 W	0.06 kW
70 W	0.07 kW
75 W	0.075 kW
80 W	0.08 kW
90 W	0.09 kW
100 W	0.1 kW
150 W	0.15 kW
200 W	0.2 kW
250 W	0.25 kW
500 W	0.5 kW
1,000 W	1 kW

About the units

Watt (W) is a metric (SI) unit. 1 W = 0.001 kW.

Kilowatt (kW) is a metric (SI) unit. 1 kW = 1,000 W.

Frequently asked questions

How do I convert watts to kilowatts?: Multiply the value in W by 0.001.
How many kilowatts are in 1 watt?: 1 W = 0.001 kW.
What is 12 W in kW?: 12 W = 0.012 kW.
How do I convert kilowatts to watts?: Use the reverse converter: kW → W.

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Related conversions

kW → W kW → hp hp → kW kW → PS PS → kW W → hp hp → W W → BTU/h BTU/h → W kW → BTU/h BTU/h → kW TR → kW kW → TR MW → kW

Sources: NIST SP 811 · BIPM SI Brochure · NIST Handbook 44. Last reviewed: 2026-10 · FreeUnitConverters