Kilowatt to Joule per second Converter (and vice versa)

Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026

This converter allows you to convert kilowatts [kW] to joules per second [J/s] or joules per second [J/s] to kilowatts [kW]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.

1 kilowatt [kW] = 1,000 joules per second [J/s]1 joule per second [J/s] = 0.001 kilowatts [kW]

Convert kilowatts to joules per second

There are two simple ways to convert kilowatts [kW] to joules per second [J/s]. In the first calculation method, the value in kilowatts [kW] is divided by 0.001. The second method multiplies the value in kilowatts [kW] by 1,000.

  • Joules per second [J/s] = kilowatts [kW] ÷ 0.001
  • Joules per second [J/s] = kilowatts [kW] * 1,000

Convert joules per second to kilowatts

Converting joules per second [J/s] to kilowatts [kW] is easy and can be done in two ways. The first method involves multiplication, whereby the value in joules per second [J/s] is multiplied by 0.001. The second variant is a division. Here, the value in joules per second [J/s] is divided by 1,000.

  • Kilowatts [kW] = joules per second [J/s] * 0.001
  • Kilowatts [kW] = joules per second [J/s] ÷ 1,000

Converter

Decimal places

How it's calculated

Factor: 
1,000
Joules per second=Kilowatts*1,000
Kilowatts=
Joules per second1,000

To all available units

Kilowatts

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Kilowatts

Kilocalories per minute

Kilowatts

Kilocalories per second

Kilowatts

Kilojoules per hour

Kilowatts

Kilojoules per minute

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