Kilowatt to Kilojoule per hour 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 kilojoules per hour [kJ/h] or kilojoules per hour [kJ/h] 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] = 3,600 kilojoules per hour [kJ/h]1 kilojoule per hour [kJ/h] ≈ 2.778 * 10-4 kilowatts [kW]

Convert kilowatts to kilojoules per hour

There are two simple ways to convert kilowatts [kW] to kilojoules per hour [kJ/h]. In the first calculation method, the value in kilowatts [kW] is divided by the rounded conversion factor of 2.778 * 10-4. The second method multiplies the value in kilowatts [kW] by 3,600.

  • Kilojoules per hour [kJ/h] ≈ kilowatts [kW] ÷ (2.778 * 10-4)
  • Kilojoules per hour [kJ/h] = kilowatts [kW] * 3,600

The calculation method with a rounded conversion value is more suitable for rough conversions from kilowatts [kW] to kilojoules per hour [kJ/h], as the calculation result may contain rounding errors. Therefore, the variant with the exact conversion factor is more suitable.


Convert kilojoules per hour to kilowatts

Converting kilojoules per hour [kJ/h] to kilowatts [kW] is easy and can be done in two ways. The first method involves multiplication, in which the value in kilojoules per hour [kJ/h] is multiplied by the rounded conversion factor of 2.778 * 10-4. The second variant is a division. Here, the value in kilojoules per hour [kJ/h] is divided by 3,600.

  • Kilowatts [kW] ≈ kilojoules per hour [kJ/h] * 2.778 * 10-4
  • Kilowatts [kW] = kilojoules per hour [kJ/h] ÷ 3,600

The rounded conversion value can cause rounding errors, resulting in inaccurate calculation results. To ensure that the conversion from kilojoules per hour [kJ/h] to kilowatts [kW] produces the most accurate calculation result possible, the conversion should be performed using the exact conversion factor.

Converter

Decimal places

How it's calculated

Factor: 
3,600
Kilojoules per hour=Kilowatts*3,600
Kilowatts=
Kilojoules per hour3,600

To all available units

Kilowatts

Kilojoules per minute

Kilowatts

Kilojoules per second

Kilowatts

Mechanical horsepower

Kilowatts

Megawatts

Kilowatts

Metric horsepower

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