500 Watts to Kilowatts

500 W = 0.5 kW

Calculation: kW = 500 W × 0.001 = 0.5 kW

Watt to Kilowatt Converter

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How much power is 500 W?

500 W is comparable to a space heater.

What does 500 W look like?

Comparable to a space heater
500 W is comparable to a space heater.

How to Convert Watt to Kilowatt

1 watt = 0.001 kilowatts exact

Kilowatt = Watt × 0.001

Example: 500 W × 0.001 = 12 kW

Reverse Conversion

To convert kilowatts back to watts:

  • Remember, 1 kilowatt equals 1000 watts.
  • To convert 12 kW to W, multiply 12 x 1000, resulting in 500 W.

exact This conversion factor is exact by international definition.

500 W is also equal to:

  • 0.0005 megawatt
  • 0.67024 horsepower (electric)
About these units

Watt: SI base unit of power equal to one joule per second.

Kilowatt: SI multiple equal to one thousand watts.

Frequently Asked Questions

How much is 500 watts in kilowatts?

500 watts equals 0.5 kilowatts. This is calculated by multiplying 500 by the conversion factor 0.001.

What does 500 watts look like in kilowatts?

500 watts (0.5 kilowatts) is a large appliance — a microwave, a hair dryer, or a space heater (US max 1,500 W on a 15 A circuit).

How do you calculate 500 watts to kilowatts?

Multiply 500 by the conversion factor 0.001. The calculation is 500 × 0.001 = 0.5 kilowatts. This factor is defined by international measurement standards.

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500 watts = 0.5 kilowatts
500 watts = 0.5 kilowatts — conversion chart

Nearby Conversions

450 watts0.45 kilowatts 455 watts0.455 kilowatts 460 watts0.46 kilowatts 465 watts0.465 kilowatts 470 watts0.47 kilowatts 475 watts0.475 kilowatts 480 watts0.48 kilowatts 485 watts0.485 kilowatts 490 watts0.49 kilowatts 495 watts0.495 kilowatts 505 watts0.505 kilowatts 510 watts0.51 kilowatts 515 watts0.515 kilowatts 520 watts0.52 kilowatts 525 watts0.525 kilowatts 530 watts0.53 kilowatts 535 watts0.535 kilowatts 540 watts0.54 kilowatts 545 watts0.545 kilowatts 550 watts0.55 kilowatts

For general conversions between watts and kilowatts, see the watts to kilowatts converter.

Also convert Watts to:

Conversion factors verified against NIST, BIPM, ISO 80000-4 Based on SI base units (W = J/s, BIPM). Last reviewed: April 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.