Joule per hour Converter
Created by: tinycalcs.com/en
Number of supported units: 24
Last update: 2026
The Joule per hour Converter supports 24 different power units. This makes it possible to convert freely between joules per hour [J/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 joules per hour
In order to convert joules per hour [J/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 joules per hour [J/h] to be queried directly from the conversion table.
Determine conversion factor
Conversion between joules per hour and milliwatts
A quick and precise conversion between joules per hour [J/h] and milliwatts [mW] is straightforward and requires only multiplication or division by 3.6. The conversion from milliwatts [mW] to joules per hour [J/h] is done by multiplying the value in milliwatts [mW] by 3.6. To reverse the conversion, divide the value in joules per hour [J/h] by 3.6 to obtain milliwatts [mW].
- Joules per hour [J/h] = milliwatts [mW] * 3.6
- Milliwatts [mW] = joules per hour [J/h] ÷ 3.6
Conversion between joules per hour and watts
Conversions between joules per hour [J/h] and watts [W] are straightforward and can be performed with simple math. The required conversion factor is 3,600. To convert a value from watts [W] to joules per hour [J/h], multiply the number of watts [W] by 3,600. For values in joules per hour [J/h], divide by 3,600 to get the equivalent in watts [W].
- Joules per hour [J/h] = watts [W] * 3,600
- Watts [W] = joules per hour [J/h] ÷ 3,600
Conversion between joules per hour and kilowatts
The conversion between joules per hour [J/h] and kilowatts [kW] is quick to perform and requires only basic mathematical operations an the conversion factor 3,600,000. Multiply the number of kilowatts [kW] by 3,600,000 to get the converted value in joules per hour [J/h]. To convert a value in joules per hour [J/h] back to kilowatts [kW], simply divide the amount of joules per hour [J/h] by 3,600,000.
- Joules per hour [J/h] = kilowatts [kW] * 3,600,000
- Kilowatts [kW] = joules per hour [J/h] ÷ 3,600,000
Conversion between joules per hour and metric horsepower
Joules per hour [J/h] and metric horsepower [PS] can be converted quickly and accurately with just a simple multiplication or division using the conversion factor 2,647,795.5. Converting metric horsepower [PS] to joules per hour [J/h] is performed by multiplying the number of metric horsepower [PS] by 2,647,795.5. To convert a value from joules per hour [J/h] to metric horsepower [PS], divide the number of joules per hour [J/h] by 2,647,795.5.
- Joules per hour [J/h] = metric horsepower [PS] * 2,647,795.5
- Metric horsepower [PS] = joules per hour [J/h] ÷ 2,647,795.5
Conversion between joules per hour and mechanical horsepower
You can easily convert between mechanical horsepower [hp(I)] and joules per hour [J/h] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Joules per hour [J/h] = mechanical horsepower [hp(I)] * 1,632.932532 * 1,643.986806
- Mechanical horsepower [hp(I)] = joules per hour [J/h] ÷ 1,632.932532 ÷ 1,643.986806
Joule per hour
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Other units converter
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Joules per second
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