Online Power Units Converter
How to Convert from Btu (th)/second [Btu (th)/s] to Femtojoule/second [fJ/s]
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How to Convert from Btu (th)/second [Btu (th)/s] to Femtojoule/second [fJ/s]

Learn how to convert power measurements from Btu (th)/second to femtojoule/second with this easy-to-use online unit converter, ideal for applications ranging from HVAC systems to nanoelectronics.

Please check your input. It must be a valid numeric value.

Btu (th)/second [Btu (th)/s] to Femtojoule/second [fJ/s] Conversion Table

Btu (th)/second [Btu (th)/s] Femtojoule/second [fJ/s]

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.
Btu (th)/second [Btu (th)/s] to Femtojoule/second [fJ/s] Conversion Table
Btu (th)/second [Btu (th)/s] Femtojoule/second [fJ/s]

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  15. How to convert from hectowatt [hW] to Btu (th)/second [Btu (th)/s]?
  16. How to convert from Btu (th)/second [Btu (th)/s] to hectowatt [hW]?
  17. How to convert from dekawatt [daW] to Btu (th)/second [Btu (th)/s]?
  18. How to convert from Btu (th)/second [Btu (th)/s] to dekawatt [daW]?
  19. How to convert from deciwatt [dW] to Btu (th)/second [Btu (th)/s]?
  20. How to convert from Btu (th)/second [Btu (th)/s] to deciwatt [dW]?
  21. How to convert from centiwatt [cW] to Btu (th)/second [Btu (th)/s]?
  22. How to convert from Btu (th)/second [Btu (th)/s] to centiwatt [cW]?
  23. How to convert from milliwatt [mW] to Btu (th)/second [Btu (th)/s]?
  24. How to convert from Btu (th)/second [Btu (th)/s] to milliwatt [mW]?
  25. How to convert from microwatt [µW] to Btu (th)/second [Btu (th)/s]?
  26. How to convert from Btu (th)/second [Btu (th)/s] to microwatt [µW]?
  27. How to convert from nanowatt [nW] to Btu (th)/second [Btu (th)/s]?
  28. How to convert from Btu (th)/second [Btu (th)/s] to nanowatt [nW]?
  29. How to convert from picowatt [pW] to Btu (th)/second [Btu (th)/s]?
  30. How to convert from Btu (th)/second [Btu (th)/s] to picowatt [pW]?
  31. How to convert from femtowatt [fW] to Btu (th)/second [Btu (th)/s]?
  32. How to convert from Btu (th)/second [Btu (th)/s] to femtowatt [fW]?
  33. How to convert from attowatt [aW] to Btu (th)/second [Btu (th)/s]?
  34. How to convert from Btu (th)/second [Btu (th)/s] to attowatt [aW]?
  35. How to convert from horsepower [hp, hp (UK)] to Btu (th)/second [Btu (th)/s]?
  36. How to convert from Btu (th)/second [Btu (th)/s] to horsepower [hp, hp (UK)]?
  37. How to convert from horsepower (550 ft*lbf/s) to Btu (th)/second [Btu (th)/s]?
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  39. How to convert from horsepower (metric) to Btu (th)/second [Btu (th)/s]?
  40. How to convert from Btu (th)/second [Btu (th)/s] to horsepower (metric)?
  41. How to convert from horsepower (boiler) to Btu (th)/second [Btu (th)/s]?
  42. How to convert from Btu (th)/second [Btu (th)/s] to horsepower (boiler)?
  43. How to convert from horsepower (electric) to Btu (th)/second [Btu (th)/s]?
  44. How to convert from Btu (th)/second [Btu (th)/s] to horsepower (electric)?
  45. How to convert from horsepower (water) to Btu (th)/second [Btu (th)/s]?
  46. How to convert from Btu (th)/second [Btu (th)/s] to horsepower (water)?
  47. How to convert from pferdestarke (ps) to Btu (th)/second [Btu (th)/s]?
  48. How to convert from Btu (th)/second [Btu (th)/s] to pferdestarke (ps)?
  49. How to convert from Btu (IT)/hour [Btu/h] to Btu (th)/second [Btu (th)/s]?
  50. How to convert from Btu (th)/second [Btu (th)/s] to Btu (IT)/hour [Btu/h]?
  51. How to convert from Btu (IT)/minute [Btu/min] to Btu (th)/second [Btu (th)/s]?
  52. How to convert from Btu (th)/second [Btu (th)/s] to Btu (IT)/minute [Btu/min]?
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  59. How to convert from MBtu (IT)/hour [MBtu/h] to Btu (th)/second [Btu (th)/s]?
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  63. How to convert from ton (refrigeration) to Btu (th)/second [Btu (th)/s]?
  64. How to convert from Btu (th)/second [Btu (th)/s] to ton (refrigeration)?
  65. How to convert from kilocalorie (IT)/hour [kcal/h] to Btu (th)/second [Btu (th)/s]?
  66. How to convert from Btu (th)/second [Btu (th)/s] to kilocalorie (IT)/hour [kcal/h]?
  67. How to convert from kilocalorie (IT)/minute to Btu (th)/second [Btu (th)/s]?
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  101. How to convert from erg/second [erg/s] to Btu (th)/second [Btu (th)/s]?
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  113. How to convert from petajoule/second [PJ/s] to Btu (th)/second [Btu (th)/s]?
  114. How to convert from Btu (th)/second [Btu (th)/s] to petajoule/second [PJ/s]?
  115. How to convert from terajoule/second [TJ/s] to Btu (th)/second [Btu (th)/s]?
  116. How to convert from Btu (th)/second [Btu (th)/s] to terajoule/second [TJ/s]?
  117. How to convert from gigajoule/second [GJ/s] to Btu (th)/second [Btu (th)/s]?
  118. How to convert from Btu (th)/second [Btu (th)/s] to gigajoule/second [GJ/s]?
  119. How to convert from megajoule/second [MJ/s] to Btu (th)/second [Btu (th)/s]?
  120. How to convert from Btu (th)/second [Btu (th)/s] to megajoule/second [MJ/s]?
  121. How to convert from kilojoule/second [kJ/s] to Btu (th)/second [Btu (th)/s]?
  122. How to convert from Btu (th)/second [Btu (th)/s] to kilojoule/second [kJ/s]?
  123. How to convert from hectojoule/second [hJ/s] to Btu (th)/second [Btu (th)/s]?
  124. How to convert from Btu (th)/second [Btu (th)/s] to hectojoule/second [hJ/s]?
  125. How to convert from dekajoule/second [daJ/s] to Btu (th)/second [Btu (th)/s]?
  126. How to convert from Btu (th)/second [Btu (th)/s] to dekajoule/second [daJ/s]?
  127. How to convert from decijoule/second [dJ/s] to Btu (th)/second [Btu (th)/s]?
  128. How to convert from Btu (th)/second [Btu (th)/s] to decijoule/second [dJ/s]?
  129. How to convert from centijoule/second [cJ/s] to Btu (th)/second [Btu (th)/s]?
  130. How to convert from Btu (th)/second [Btu (th)/s] to centijoule/second [cJ/s]?
  131. How to convert from millijoule/second [mJ/s] to Btu (th)/second [Btu (th)/s]?
  132. How to convert from Btu (th)/second [Btu (th)/s] to millijoule/second [mJ/s]?
  133. How to convert from microjoule/second [µJ/s] to Btu (th)/second [Btu (th)/s]?
  134. How to convert from Btu (th)/second [Btu (th)/s] to microjoule/second [µJ/s]?
  135. How to convert from nanojoule/second [nJ/s] to Btu (th)/second [Btu (th)/s]?
  136. How to convert from Btu (th)/second [Btu (th)/s] to nanojoule/second [nJ/s]?
  137. How to convert from picojoule/second [pJ/s] to Btu (th)/second [Btu (th)/s]?
  138. How to convert from Btu (th)/second [Btu (th)/s] to picojoule/second [pJ/s]?
  139. How to convert from femtojoule/second [fJ/s] to Btu (th)/second [Btu (th)/s]?
  140. How to convert from Btu (th)/second [Btu (th)/s] to femtojoule/second [fJ/s]?
  141. How to convert from attojoule/second [aJ/s] to Btu (th)/second [Btu (th)/s]?
  142. How to convert from Btu (th)/second [Btu (th)/s] to attojoule/second [aJ/s]?
  143. How to convert from joule/hour [J/h] to Btu (th)/second [Btu (th)/s]?
  144. How to convert from Btu (th)/second [Btu (th)/s] to joule/hour [J/h]?
  145. How to convert from joule/minute [J/min] to Btu (th)/second [Btu (th)/s]?
  146. How to convert from Btu (th)/second [Btu (th)/s] to joule/minute [J/min]?
  147. How to convert from kilojoule/hour [kJ/h] to Btu (th)/second [Btu (th)/s]?
  148. How to convert from Btu (th)/second [Btu (th)/s] to kilojoule/hour [kJ/h]?
  149. How to convert from kilojoule/minute [kJ/min] to Btu (th)/second [Btu (th)/s]?
  150. How to convert from Btu (th)/second [Btu (th)/s] to kilojoule/minute [kJ/min]?

What Is This Tool?

This converter allows you to transform thermal power values measured in Btu (th)/second into femtojoule/second units. It helps bridge the gap between conventional heat transfer rates and extremely small power scales used in advanced scientific fields.

How to Use This Tool?

  • Enter the value in Btu (th)/second that you want to convert.
  • Select femtojoule/second as the target unit.
  • Click the convert button to see the equivalent power output in femtojoule/second.

Key Features

  • Converts thermal power from Btu (th)/second to femtojoule/second instantly.
  • Supports unit definitions relevant for heating, cooling, nanoelectronics, and quantum measurement.
  • Browser-based, easy to use, and performs precise large-scale conversions.
  • Includes example calculations for better understanding.

Examples

  • 2 Btu (th)/second equals 2.1086999999488 × 10^18 femtojoule/second.
  • 0.5 Btu (th)/second equals 5.271749999872 × 10^17 femtojoule/second.

Common Use Cases

  • Rating HVAC equipment capacity based on heat delivery rates.
  • Specifying outputs of boilers and heat exchangers in building and industrial systems.
  • Estimating energy dissipation in ultra-low-power nanoelectronic circuits.
  • Describing power levels in single-photon and single-electron detection devices.
  • Monitoring tiny heat loads in quantum and precision measurement experiments.

Tips & Best Practices

  • Use this converter to translate thermal power data into nano- and quantum-scale power units accurately.
  • Verify input values to ensure meaningful results, especially when dealing with large thermal power quantities.
  • Apply this conversion for cross-disciplinary analysis involving HVAC engineering and nanoscale physics.

Limitations

  • The conversion factor produces extremely large numbers requiring high-precision calculations.
  • Femtojoule/second units are not practical for conventional heating or industrial power levels.
  • This unit is reserved for very low-power systems needing quantum or nanoscale resolution.

Frequently Asked Questions

What does 1 Btu (th)/second represent?
It is a unit of power measuring one thermochemical British thermal unit of heat transferred per second, commonly used in heating, cooling, and energy systems.

Where is femtojoule/second commonly used?
Femtojoule/second measures extremely small power rates typical in nanoelectronics, single-photon detectors, and precision physics experiments.

Why is the conversion number so large?
Because femtojoule/second units represent extremely small amounts of power, converting from thermal units results in very large numerical values.

Key Terminology

Btu (th)/second
A power unit expressing the rate of heat transfer equal to one thermochemical British thermal unit per second.
Femtojoule/second (fJ/s)
A power unit equal to 10^-15 joule per second, used to quantify extremely small energy transfer rates in advanced physics and nanoelectronics.

Quick Knowledge Check

What kind of quantity does Btu (th)/second measure?
Femtojoule/second is best suited to measure power in which field?
Why might converting large thermal powers to femtojoule/second be challenging?

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