Joule per second Converter
Created by: tinycalcs.com/en
Number of supported units: 24
Last update: 2026
The Joule per second Converter supports 24 different power units. This makes it possible to convert freely between joules per second [J/s], 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 second
In order to convert joules per second [J/s] 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 second [J/s] to be queried directly from the conversion table.
Determine conversion factor
Conversion between joules per second and milliwatts
A quick and precise conversion between joules per second [J/s] and milliwatts [mW] is straightforward and requires only multiplication or division by 1,000. The conversion from joules per second [J/s] to milliwatts [mW] is done by multiplying the value in joules per second [J/s] by 1,000. To reverse the conversion, divide the value in milliwatts [mW] by 1,000 to obtain joules per second [J/s].
- Milliwatts [mW] = joules per second [J/s] * 1,000
- Joules per second [J/s] = milliwatts [mW] ÷ 1,000
Conversion between joules per second and kilowatts
Conversions between joules per second [J/s] and kilowatts [kW] are straightforward and can be performed with simple math. The required conversion factor is 1,000. To convert a value from kilowatts [kW] to joules per second [J/s], multiply the number of kilowatts [kW] by 1,000. For values in joules per second [J/s], divide by 1,000 to get the equivalent in kilowatts [kW].
- Joules per second [J/s] = kilowatts [kW] * 1,000
- Kilowatts [kW] = joules per second [J/s] ÷ 1,000
Conversion between joules per second and metric horsepower
You can easily convert between metric horsepower [PS] and joules per second [J/s] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.
- Joules per second [J/s] = metric horsepower [PS] * 735.49875
- Metric horsepower [PS] = joules per second [J/s] ÷ 735.49875
Conversion between joules per second and mechanical horsepower
The fastest and easiest way to convert between mechanical horsepower [hp(I)] and joules per second [J/s] is to use the converter above. Manual conversions are also possible and can be done using the formulas provided below.
- Joules per second [J/s] = mechanical horsepower [hp(I)] * 27.2155422 * 27.3997801
- Mechanical horsepower [hp(I)] = joules per second [J/s] ÷ 27.2155422 ÷ 27.3997801
Conversion between joules per second and kilojoules per minute
The two formulas below provide an easy way to convert between joules per second [J/s] and kilojoules per minute [kJ/min]. To ensure precise conversion results, it is important to follow the correct order of math operations.
- Kilojoules per minute [kJ/min] = joules per second [J/s] * 0.06
- Joules per second [J/s] = kilojoules per minute [kJ/min] ÷ 0.06
Joule per second
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