Online Power Units Converter
Convert Btu (IT)/hour to Milliwatt [mW]

Convert Btu (IT)/hour to Milliwatt [mW]

Learn how to easily convert power units from Btu (IT)/hour to milliwatt using our simple online unit converter tool, ideal for HVAC, electronic, and optical power calculations.

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

Btu (IT)/hour [Btu/h] to Milliwatt [mW] Conversion Table

Btu (IT)/hour [Btu/h] Milliwatt [mW]

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 (IT)/hour [Btu/h] to Milliwatt [mW] Conversion Table
Btu (IT)/hour [Btu/h] Milliwatt [mW]

Explore More Power Units Converter

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

What Is This Tool?

This converter transforms power measurements from Btu (IT)/hour, a unit commonly used for heat transfer rates, into milliwatts, a smaller scale SI unit of power often used in electronic and optical applications.

How to Use This Tool?

  • Enter the power value in Btu (IT)/hour you want to convert
  • Select the input unit as Btu (IT)/hour
  • Choose milliwatt [mW] as the output unit
  • Click convert to see the result instantly
  • Use the output to support engineering or energy management tasks

Key Features

  • Converts power values from Btu (IT)/hour to milliwatt accurately
  • Supports heat transfer and small-scale electronic power unit conversion
  • Browser-based, user-friendly interface for quick calculations
  • Includes examples to illustrate typical conversions
  • Useful for HVAC, building energy, and electronic device power analysis

Examples

  • 2 Btu (IT)/hour converts to approximately 586.142 milliwatts
  • 0.5 Btu (IT)/hour converts to approximately 146.536 milliwatts

Common Use Cases

  • Rating HVAC equipment and specifying heat output for boilers and furnaces
  • Estimating building heat loss/gain for energy management
  • Measuring small electronic component power such as sensors and LEDs
  • Determining optical and radio-frequency device output powers
  • Bridging heat transfer power ratings with detailed component-level power analysis

Tips & Best Practices

  • Ensure correct selection of input and output units before converting
  • Use this conversion to translate larger heat transfer values into fine-scale power units
  • Apply the results for engineering calculations in HVAC or electronic device design
  • Consider the context of power usage since unit types represent different physical domains
  • Double-check values when converting large Btu/h to avoid impractical milliwatt outputs

Limitations

  • Btu (IT)/hour is designed for heat transfer power, not direct electrical power measurements
  • Millwatt values become very large for high Btu/h inputs, which may not suit all applications
  • Conversion assumes steady-state power and excludes dynamic or transient thermal effects

Frequently Asked Questions

What is a Btu (IT)/hour used for?
It is primarily used to express heat transfer rates in heating systems, HVAC equipment, and building energy management.

Why convert Btu (IT)/hour to milliwatts?
To translate large-scale heat transfer power into precise, smaller units suitable for detailed analysis of electronic and optical devices.

Can I use this converter for electrical power calculations?
This converter focuses on heat transfer power to electrical or optical power units, but careful context consideration is needed when applying to electrical power.

Key Terminology

Btu (IT)/hour [Btu/h]
A unit of power representing one International Table British thermal unit transferred per hour, used for heat transfer rates.
Milliwatt [mW]
One thousandth of a watt, measuring small-scale power transfer often in electrical, optical, and radio-frequency devices.

Quick Knowledge Check

What does 1 Btu (IT)/hour approximately equal in milliwatts?
Which domain primarily uses Btu (IT)/hour?
What is a typical use of milliwatt units?