How many milli- in 1 Btu? The answer is 1055055.9. We assume you are converting between milliwattsecond and British thermal unit. You can view more details on each measurement unit: milli- or Btu The SI derived unit for energy is the joule. 1 joule is equal to 1000 milli-, or 0.00094781707774915 Btu. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between milliwattsecond and Btus. Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from Btu to milli-, or enter any two units below:
The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.
So 1 milliwattsecond = 10-3 .
The British thermal unit (BTU or Btu) is a non-metric unit of energy, used in the United States and, to a lesser extent, the UK (where it isgenerally only used for heating systems). The SI unit is the joule (J), which is used by most other countries.
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