Online Power Units Converter
Convert Joule/hour to Horsepower [hp, hp (UK)] – Online Power Unit Converter

Convert Joule/hour to Horsepower [hp, hp (UK)] – Online Power Unit Converter

Easily convert power from joule per hour (J/h) to mechanical horsepower (hp, hp UK) using our online converter. Understand unit definitions, applications, and practical steps for conversion.

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Joule/hour [J/h] to Horsepower [hp, hp (UK)] Conversion Table

Joule/hour [J/h] Horsepower [hp, hp (UK)]

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/hour [J/h] to Horsepower [hp, hp (UK)] Conversion Table
Joule/hour [J/h] Horsepower [hp, hp (UK)]

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  5. How to convert from petawatt [PW] to joule/hour [J/h]?
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  7. How to convert from terawatt [TW] to joule/hour [J/h]?
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  9. How to convert from gigawatt [GW] to joule/hour [J/h]?
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  13. How to convert from kilowatt [kW] to joule/hour [J/h]?
  14. How to convert from joule/hour [J/h] to kilowatt [kW]?
  15. How to convert from hectowatt [hW] to joule/hour [J/h]?
  16. How to convert from joule/hour [J/h] to hectowatt [hW]?
  17. How to convert from dekawatt [daW] to joule/hour [J/h]?
  18. How to convert from joule/hour [J/h] to dekawatt [daW]?
  19. How to convert from deciwatt [dW] to joule/hour [J/h]?
  20. How to convert from joule/hour [J/h] to deciwatt [dW]?
  21. How to convert from centiwatt [cW] to joule/hour [J/h]?
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  23. How to convert from milliwatt [mW] to joule/hour [J/h]?
  24. How to convert from joule/hour [J/h] to milliwatt [mW]?
  25. How to convert from microwatt [µW] to joule/hour [J/h]?
  26. How to convert from joule/hour [J/h] to microwatt [µW]?
  27. How to convert from nanowatt [nW] to joule/hour [J/h]?
  28. How to convert from joule/hour [J/h] to nanowatt [nW]?
  29. How to convert from picowatt [pW] to joule/hour [J/h]?
  30. How to convert from joule/hour [J/h] to picowatt [pW]?
  31. How to convert from femtowatt [fW] to joule/hour [J/h]?
  32. How to convert from joule/hour [J/h] to femtowatt [fW]?
  33. How to convert from attowatt [aW] to joule/hour [J/h]?
  34. How to convert from joule/hour [J/h] to attowatt [aW]?
  35. How to convert from horsepower [hp, hp (UK)] to joule/hour [J/h]?
  36. How to convert from joule/hour [J/h] to horsepower [hp, hp (UK)]?
  37. How to convert from horsepower (550 ft*lbf/s) to joule/hour [J/h]?
  38. How to convert from joule/hour [J/h] to horsepower (550 ft*lbf/s)?
  39. How to convert from horsepower (metric) to joule/hour [J/h]?
  40. How to convert from joule/hour [J/h] to horsepower (metric)?
  41. How to convert from horsepower (boiler) to joule/hour [J/h]?
  42. How to convert from joule/hour [J/h] to horsepower (boiler)?
  43. How to convert from horsepower (electric) to joule/hour [J/h]?
  44. How to convert from joule/hour [J/h] to horsepower (electric)?
  45. How to convert from horsepower (water) to joule/hour [J/h]?
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  47. How to convert from pferdestarke (ps) to joule/hour [J/h]?
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  52. How to convert from joule/hour [J/h] to Btu (IT)/minute [Btu/min]?
  53. How to convert from Btu (IT)/second [Btu/s] to joule/hour [J/h]?
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  55. How to convert from Btu (th)/hour [Btu (th)/h] to joule/hour [J/h]?
  56. How to convert from joule/hour [J/h] to Btu (th)/hour [Btu (th)/h]?
  57. How to convert from Btu (th)/minute to joule/hour [J/h]?
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  59. How to convert from Btu (th)/second [Btu (th)/s] to joule/hour [J/h]?
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  78. How to convert from joule/hour [J/h] to kilocalorie (th)/second?
  79. How to convert from calorie (IT)/hour [cal/h] to joule/hour [J/h]?
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  123. How to convert from kilojoule/second [kJ/s] to joule/hour [J/h]?
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  125. How to convert from hectojoule/second [hJ/s] to joule/hour [J/h]?
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  131. How to convert from centijoule/second [cJ/s] to joule/hour [J/h]?
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  133. How to convert from millijoule/second [mJ/s] to joule/hour [J/h]?
  134. How to convert from joule/hour [J/h] to millijoule/second [mJ/s]?
  135. How to convert from microjoule/second [µJ/s] to joule/hour [J/h]?
  136. How to convert from joule/hour [J/h] to microjoule/second [µJ/s]?
  137. How to convert from nanojoule/second [nJ/s] to joule/hour [J/h]?
  138. How to convert from joule/hour [J/h] to nanojoule/second [nJ/s]?
  139. How to convert from picojoule/second [pJ/s] to joule/hour [J/h]?
  140. How to convert from joule/hour [J/h] to picojoule/second [pJ/s]?
  141. How to convert from femtojoule/second [fJ/s] to joule/hour [J/h]?
  142. How to convert from joule/hour [J/h] to femtojoule/second [fJ/s]?
  143. How to convert from attojoule/second [aJ/s] to joule/hour [J/h]?
  144. How to convert from joule/hour [J/h] to attojoule/second [aJ/s]?
  145. How to convert from joule/minute [J/min] to joule/hour [J/h]?
  146. How to convert from joule/hour [J/h] to joule/minute [J/min]?
  147. How to convert from kilojoule/hour [kJ/h] to joule/hour [J/h]?
  148. How to convert from joule/hour [J/h] to kilojoule/hour [kJ/h]?
  149. How to convert from kilojoule/minute [kJ/min] to joule/hour [J/h]?
  150. How to convert from joule/hour [J/h] to kilojoule/minute [kJ/min]?

What Is This Tool?

This converter allows you to transform power values expressed in joule per hour (J/h) into mechanical horsepower (hp, hp UK). Joule/hour measures low power rates over hours, while horsepower indicates mechanical power output commonly used in engines and machinery.

How to Use This Tool?

  • Input the power value in joule per hour (J/h) into the converter
  • Select the target unit as horsepower (hp or hp UK)
  • Initiate the conversion to obtain the equivalent horsepower value
  • Review the results for engineering, automotive, or research use

Key Features

  • Converts power values from joule per hour [J/h] to mechanical horsepower [hp, hp (UK)]
  • Supports understanding of unit definitions and their common applications
  • Provides example calculations for quick reference
  • Browser-based and easy to use for engineers, researchers, and technicians

Examples

  • 1000 J/h = 0.0003725 horsepower (hp, UK)
  • 5000 J/h = 0.0018625 horsepower (hp, UK)

Common Use Cases

  • Expressing very low continuous power or standby losses in electronic devices over hours
  • Converting long-duration energy measurements into instantaneous mechanical power rates
  • Rating automotive and motorcycle engine output in vehicle specifications
  • Specifying power for electric motors, pumps, and small engines
  • Comparing performance of marine engines and industrial machinery

Tips & Best Practices

  • Clarify the horsepower variant in use to ensure conversion accuracy
  • Use joule/hour for low power or slow processes, and horsepower for higher power mechanical contexts
  • Apply this converter for comparing low power rates with conventional engine power units
  • Double-check conversions when used in precise engineering or scientific tasks

Limitations

  • Conversion results produce very small numbers due to the low power scale of joule/hour
  • Horsepower definitions vary; metric vs mechanical forms can cause discrepancies if unspecified
  • Joule/hour and horsepower differ greatly in practical application domains, reducing interchangeability

Frequently Asked Questions

Why are joule/hour values so small when converted to horsepower?
Because joule/hour measures very low power over time, its equivalent in horsepower, a unit for higher mechanical power, results in very small numbers.

What is the difference between the horsepower units mentioned?
The mechanical or imperial horsepower, like hp (UK), is commonly used in machinery and is defined as 550 foot-pounds per second, approximately 745.7 watts. Other variants, such as metric horsepower, have slightly different values.

In what situations is it useful to convert joule/hour to horsepower?
This conversion helps translate long-duration low power measurements into the conventional mechanical unit to compare engine and machinery performance or specify motor power.

Key Terminology

Joule/hour (J/h)
A unit of power that quantifies one joule of energy transferred or converted per hour, indicating a very low rate of energy transfer.
Horsepower (hp, hp UK)
A non-SI unit of power representing the rate of doing mechanical work, commonly defined as 550 foot-pounds per second or about 745.7 watts for the mechanical/imperial variant.

Quick Knowledge Check

What does 1 joule/hour represent?
Which is a common use for horsepower units?
Why might conversions from joule/hour to horsepower yield very small values?