Watts to Kilowatts Conversion (W to kW)

Watts to Kilowatts Converter

Enter the power in watts below to convert it to kilowatts.

Result in Kilowatts:

1,000 W = 1 kW

How to Convert Watts to Kilowatts

To convert a measurement in watts to a measurement in kilowatts, divide the power by the following conversion ratio: 1,000 watts/kilowatt.

Since one kilowatt is equal to 1,000 watts, you can use this simple formula to convert:

kilowatts = watts ÷ 1,000

The power in kilowatts is equal to the power in watts divided by 1,000.

For example, here's how to convert 5,000 watts to kilowatts using the formula above.

kilowatts = (5,000 W ÷ 1,000) = 5 kW

conversion scale showing watts and equivalent kilowatts power values

Watts and kilowatts are both units used to measure power. Keep reading to learn more about each unit of measure.

What Is a Watt?

One watt is the power equal to the rate of energy of one joule per second in an electrical circuit.^[1] One watt is also equal to the power produced in a circuit with a voltage potential of one volt with a current of one amp.

The watt is the SI derived unit for power in the metric system. Watts can be abbreviated as W; for example, 1 watt can be written as 1 W.

Watt's Law states the relationship between power, current, and voltage. Using Watt's Law, it's possible to express the power in watts as an expression using current and voltage.

P_W = I_A × V_V

The power in watts is equal to the current in amperes times the potential difference in volts.

Combining this with Ohm's Law, it's also possible to express the power in watts using resistance in addition to volts and amps.

Learn more about watts.

What Is a Kilowatt?

One kilowatt is the power equal to 1,000 watts, or the energy consumption at a rate of 1,000 joules per second.

The kilowatt is a multiple of the watt, which is the SI derived unit for power. In the metric system, "kilo" is the prefix for thousands, or 10³. Kilowatts can be abbreviated as kW; for example, 1 kilowatt can be written as 1 kW.

Learn more about kilowatts.

Watt to Kilowatt Conversion Table

Table showing various watt measurements converted to kilowatts.
Watts	Kilowatts
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
20 W	0.02 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
80 W	0.08 kW
90 W	0.09 kW
100 W	0.1 kW
200 W	0.2 kW
300 W	0.3 kW
400 W	0.4 kW
500 W	0.5 kW
600 W	0.6 kW
700 W	0.7 kW
800 W	0.8 kW
900 W	0.9 kW
1,000 W	1 kW

Table showing various watt measurements converted to kilowatts.

Watts

Kilowatts

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

20 W

0.02 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

80 W

0.08 kW

90 W

0.09 kW

100 W

0.1 kW

200 W

0.2 kW

300 W

0.3 kW

400 W

0.4 kW

500 W

0.5 kW

600 W

0.6 kW

700 W

0.7 kW

800 W

0.8 kW

900 W

0.9 kW

1,000 W

1 kW

References

International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf