Online Power Units Converter
How to Convert from Joule/second [J/s] to Kilowatt [kW]?
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How to Convert from Joule/second [J/s] to Kilowatt [kW]?

Learn how to convert power units from joule per second (J/s) to kilowatt (kW) using a simple online converter tool. Understand the definitions, use cases, and conversion process for accurate power measurement.

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Joule/second [J/s] to Kilowatt [kW] Conversion Table

Joule/second [J/s] Kilowatt [kW]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
Joule/second [J/s] to Kilowatt [kW] Conversion Table
Joule/second [J/s] Kilowatt [kW]

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  5. How to convert from petawatt [PW] to joule/second [J/s]?
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  7. How to convert from terawatt [TW] to joule/second [J/s]?
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  9. How to convert from gigawatt [GW] to joule/second [J/s]?
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  11. How to convert from megawatt [MW] to joule/second [J/s]?
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  14. How to convert from joule/second [J/s] to kilowatt [kW]?
  15. How to convert from hectowatt [hW] to joule/second [J/s]?
  16. How to convert from joule/second [J/s] to hectowatt [hW]?
  17. How to convert from dekawatt [daW] to joule/second [J/s]?
  18. How to convert from joule/second [J/s] to dekawatt [daW]?
  19. How to convert from deciwatt [dW] to joule/second [J/s]?
  20. How to convert from joule/second [J/s] to deciwatt [dW]?
  21. How to convert from centiwatt [cW] to joule/second [J/s]?
  22. How to convert from joule/second [J/s] to centiwatt [cW]?
  23. How to convert from milliwatt [mW] to joule/second [J/s]?
  24. How to convert from joule/second [J/s] to milliwatt [mW]?
  25. How to convert from microwatt [µW] to joule/second [J/s]?
  26. How to convert from joule/second [J/s] to microwatt [µW]?
  27. How to convert from nanowatt [nW] to joule/second [J/s]?
  28. How to convert from joule/second [J/s] to nanowatt [nW]?
  29. How to convert from picowatt [pW] to joule/second [J/s]?
  30. How to convert from joule/second [J/s] to picowatt [pW]?
  31. How to convert from femtowatt [fW] to joule/second [J/s]?
  32. How to convert from joule/second [J/s] to femtowatt [fW]?
  33. How to convert from attowatt [aW] to joule/second [J/s]?
  34. How to convert from joule/second [J/s] to attowatt [aW]?
  35. How to convert from horsepower [hp, hp (UK)] to joule/second [J/s]?
  36. How to convert from joule/second [J/s] to horsepower [hp, hp (UK)]?
  37. How to convert from horsepower (550 ft*lbf/s) to joule/second [J/s]?
  38. How to convert from joule/second [J/s] to horsepower (550 ft*lbf/s)?
  39. How to convert from horsepower (metric) to joule/second [J/s]?
  40. How to convert from joule/second [J/s] to horsepower (metric)?
  41. How to convert from horsepower (boiler) to joule/second [J/s]?
  42. How to convert from joule/second [J/s] to horsepower (boiler)?
  43. How to convert from horsepower (electric) to joule/second [J/s]?
  44. How to convert from joule/second [J/s] to horsepower (electric)?
  45. How to convert from horsepower (water) to joule/second [J/s]?
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  47. How to convert from pferdestarke (ps) to joule/second [J/s]?
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  49. How to convert from Btu (IT)/hour [Btu/h] to joule/second [J/s]?
  50. How to convert from joule/second [J/s] to Btu (IT)/hour [Btu/h]?
  51. How to convert from Btu (IT)/minute [Btu/min] to joule/second [J/s]?
  52. How to convert from joule/second [J/s] to Btu (IT)/minute [Btu/min]?
  53. How to convert from Btu (IT)/second [Btu/s] to joule/second [J/s]?
  54. How to convert from joule/second [J/s] to Btu (IT)/second [Btu/s]?
  55. How to convert from Btu (th)/hour [Btu (th)/h] to joule/second [J/s]?
  56. How to convert from joule/second [J/s] to Btu (th)/hour [Btu (th)/h]?
  57. How to convert from Btu (th)/minute to joule/second [J/s]?
  58. How to convert from joule/second [J/s] to Btu (th)/minute?
  59. How to convert from Btu (th)/second [Btu (th)/s] to joule/second [J/s]?
  60. How to convert from joule/second [J/s] to Btu (th)/second [Btu (th)/s]?
  61. How to convert from MBtu (IT)/hour [MBtu/h] to joule/second [J/s]?
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  67. How to convert from kilocalorie (IT)/hour [kcal/h] to joule/second [J/s]?
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  69. How to convert from kilocalorie (IT)/minute to joule/second [J/s]?
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  75. How to convert from kilocalorie (th)/minute to joule/second [J/s]?
  76. How to convert from joule/second [J/s] to kilocalorie (th)/minute?
  77. How to convert from kilocalorie (th)/second to joule/second [J/s]?
  78. How to convert from joule/second [J/s] to kilocalorie (th)/second?
  79. How to convert from calorie (IT)/hour [cal/h] to joule/second [J/s]?
  80. How to convert from joule/second [J/s] to calorie (IT)/hour [cal/h]?
  81. How to convert from calorie (IT)/minute [cal/min] to joule/second [J/s]?
  82. How to convert from joule/second [J/s] to calorie (IT)/minute [cal/min]?
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  97. How to convert from pound-foot/hour [lbf*ft/h] to joule/second [J/s]?
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  103. How to convert from erg/second [erg/s] to joule/second [J/s]?
  104. How to convert from joule/second [J/s] to erg/second [erg/s]?
  105. How to convert from kilovolt ampere [kV*A] to joule/second [J/s]?
  106. How to convert from joule/second [J/s] to kilovolt ampere [kV*A]?
  107. How to convert from volt ampere [V*A] to joule/second [J/s]?
  108. How to convert from joule/second [J/s] to volt ampere [V*A]?
  109. How to convert from newton meter/second to joule/second [J/s]?
  110. How to convert from joule/second [J/s] to newton meter/second?
  111. How to convert from exajoule/second [EJ/s] to joule/second [J/s]?
  112. How to convert from joule/second [J/s] to exajoule/second [EJ/s]?
  113. How to convert from petajoule/second [PJ/s] to joule/second [J/s]?
  114. How to convert from joule/second [J/s] to petajoule/second [PJ/s]?
  115. How to convert from terajoule/second [TJ/s] to joule/second [J/s]?
  116. How to convert from joule/second [J/s] to terajoule/second [TJ/s]?
  117. How to convert from gigajoule/second [GJ/s] to joule/second [J/s]?
  118. How to convert from joule/second [J/s] to gigajoule/second [GJ/s]?
  119. How to convert from megajoule/second [MJ/s] to joule/second [J/s]?
  120. How to convert from joule/second [J/s] to megajoule/second [MJ/s]?
  121. How to convert from kilojoule/second [kJ/s] to joule/second [J/s]?
  122. How to convert from joule/second [J/s] to kilojoule/second [kJ/s]?
  123. How to convert from hectojoule/second [hJ/s] to joule/second [J/s]?
  124. How to convert from joule/second [J/s] to hectojoule/second [hJ/s]?
  125. How to convert from dekajoule/second [daJ/s] to joule/second [J/s]?
  126. How to convert from joule/second [J/s] to dekajoule/second [daJ/s]?
  127. How to convert from decijoule/second [dJ/s] to joule/second [J/s]?
  128. How to convert from joule/second [J/s] to decijoule/second [dJ/s]?
  129. How to convert from centijoule/second [cJ/s] to joule/second [J/s]?
  130. How to convert from joule/second [J/s] to centijoule/second [cJ/s]?
  131. How to convert from millijoule/second [mJ/s] to joule/second [J/s]?
  132. How to convert from joule/second [J/s] to millijoule/second [mJ/s]?
  133. How to convert from microjoule/second [µJ/s] to joule/second [J/s]?
  134. How to convert from joule/second [J/s] to microjoule/second [µJ/s]?
  135. How to convert from nanojoule/second [nJ/s] to joule/second [J/s]?
  136. How to convert from joule/second [J/s] to nanojoule/second [nJ/s]?
  137. How to convert from picojoule/second [pJ/s] to joule/second [J/s]?
  138. How to convert from joule/second [J/s] to picojoule/second [pJ/s]?
  139. How to convert from femtojoule/second [fJ/s] to joule/second [J/s]?
  140. How to convert from joule/second [J/s] to femtojoule/second [fJ/s]?
  141. How to convert from attojoule/second [aJ/s] to joule/second [J/s]?
  142. How to convert from joule/second [J/s] to attojoule/second [aJ/s]?
  143. How to convert from joule/hour [J/h] to joule/second [J/s]?
  144. How to convert from joule/second [J/s] to joule/hour [J/h]?
  145. How to convert from joule/minute [J/min] to joule/second [J/s]?
  146. How to convert from joule/second [J/s] to joule/minute [J/min]?
  147. How to convert from kilojoule/hour [kJ/h] to joule/second [J/s]?
  148. How to convert from joule/second [J/s] to kilojoule/hour [kJ/h]?
  149. How to convert from kilojoule/minute [kJ/min] to joule/second [J/s]?
  150. How to convert from joule/second [J/s] to kilojoule/minute [kJ/min]?

What Is This Tool?

This unit converter helps you transform power values measured in joule per second (J/s) into kilowatts (kW). It is designed to simplify expressing power rates for various applications in electrical, mechanical, and thermal domains.

How to Use This Tool?

  • Enter the power value in joule per second (J/s) into the input field.
  • Select the output unit as kilowatt (kW).
  • Click on the convert button to get the result.
  • View the converted value displayed in kilowatts.

Key Features

  • Converts power from joule per second (J/s) to kilowatt (kW) with ease.
  • Browser-based tool requiring no installation.
  • Provides quick and straightforward power unit conversions for engineering and household uses.
  • Handles commonly used power units in scientific, mechanical, and electrical contexts.

Examples

  • Convert 500 joule per second to 0.5 kilowatt.
  • Convert 2000 joule per second to 2 kilowatts.

Common Use Cases

  • Expressing electrical appliance power consumption in larger units.
  • Comparing mechanical power output of engines and motors.
  • Evaluating heat transfer rates in HVAC and thermal systems.

Tips & Best Practices

  • Use the tool to convert high power values to more practical kilowatt units.
  • Apply conversions consistently when rating electrical and mechanical devices.
  • Consider the context and system when interpreting converted power values.

Limitations

  • Does not account for instantaneous changes in power levels.
  • Kilowatt units may be less suitable for very low power values.
  • Conversion is linear and does not reflect losses or quality variations.

Frequently Asked Questions

What is the relationship between joule/second and watt?
One joule per second (J/s) is exactly equal to one watt (W), the SI unit of power.

Why use kilowatt instead of joule/second for power measurements?
Kilowatt units help express larger power values more practically, especially in high-power applications.

Can this conversion handle fluctuating power levels?
No, this conversion assumes steady power and does not reflect instantaneous fluctuations.

Key Terminology

Joule per second [J/s]
An SI derived unit of power representing one joule of energy transferred per second; exactly equal to one watt.
Kilowatt [kW]
A derived SI unit of power equal to 1,000 watts, used to quantify continuous power output or consumption.

Quick Knowledge Check

What unit is equal to one joule per second?
How many watts are in one kilowatt?
What is a common use case for converting J/s to kW?

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