Kilojoule per hour Converter

Created by: tinycalcs.com/en
Number of supported units: 24
Last update: 2026

The Kilojoule per hour Converter supports 24 different power units. This makes it possible to convert freely between kilojoules per hour [kJ/h], metric, Anglo-American, and other power units. All power values are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.


Conversion of kilojoules per hour

In order to convert kilojoules per hour [kJ/h] into another unit of measurement, a conversion value is required. This value can be determined using a conversion table. However, the table is relatively large, confusing, and difficult for inexperienced users to understand. The tool below provides a solution to this problem by allowing the rounded conversion values for kilojoules per hour [kJ/h] to be queried directly from the conversion table.

Determine conversion factor

3.6
Calculation example:
Kilojoules per hour = Watts × (3.6)
Watts = 
Kilojoules per hour3.6

Conversion between kilojoules per hour and milliwatts

You can easily convert between milliwatts [mW] and kilojoules per hour [kJ/h] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.

  • Kilojoules per hour [kJ/h] = milliwatts [mW] * 0.0036
  • Milliwatts [mW] = kilojoules per hour [kJ/h] ÷ 0.0036

Conversion between kilojoules per hour and watts

A quick and precise conversion between kilojoules per hour [kJ/h] and watts [W] is straightforward and requires only multiplication or division by 3.6. The conversion from watts [W] to kilojoules per hour [kJ/h] is done by multiplying the value in watts [W] by 3.6. To reverse the conversion, divide the value in kilojoules per hour [kJ/h] by 3.6 to obtain watts [W].

  • Kilojoules per hour [kJ/h] = watts [W] * 3.6
  • Watts [W] = kilojoules per hour [kJ/h] ÷ 3.6

Conversion between kilojoules per hour and kilowatts

Conversions between kilojoules per hour [kJ/h] and kilowatts [kW] are straightforward and can be performed with simple math. The required conversion factor is 3,600. To convert a value from kilowatts [kW] to kilojoules per hour [kJ/h], multiply the number of kilowatts [kW] by 3,600. For values in kilojoules per hour [kJ/h], divide by 3,600 to get the equivalent in kilowatts [kW].

  • Kilojoules per hour [kJ/h] = kilowatts [kW] * 3,600
  • Kilowatts [kW] = kilojoules per hour [kJ/h] ÷ 3,600

Conversion between kilojoules per hour and metric horsepower

The conversion between kilojoules per hour [kJ/h] and metric horsepower [PS] is quick to perform and requires only basic mathematical operations an the conversion factor 2,647.7955. Multiply the number of metric horsepower [PS] by 2,647.7955 to get the converted value in kilojoules per hour [kJ/h]. To convert a value in kilojoules per hour [kJ/h] back to metric horsepower [PS], simply divide the amount of kilojoules per hour [kJ/h] by 2,647.7955.

  • Kilojoules per hour [kJ/h] = metric horsepower [PS] * 2,647.7955
  • Metric horsepower [PS] = kilojoules per hour [kJ/h] ÷ 2,647.7955

Conversion between kilojoules per hour and mechanical horsepower

The fastest and easiest way to convert between mechanical horsepower [hp(I)] and kilojoules per hour [kJ/h] is to use the converter above. Manual conversions are also possible and can be done using the formulas provided below.

  • Kilojoules per hour [kJ/h] = mechanical horsepower [hp(I)] * 16.32932532 * 164.3986806
  • Mechanical horsepower [hp(I)] = kilojoules per hour [kJ/h] ÷ 16.32932532 ÷ 164.3986806

Kilojoule per hour

Decimal places

Common units

Further units

Other units converter

Kilojoules per minute

Kilojoules per second

Kilowatts

Mechanical horsepower

Megawatts