Joules to Btu conversion

There is more than one type of Btu. Please use the appropriate variation from the list below.

  1. Joules to Btu (15°C)

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  2. Joules to Btu (15.6°C)

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  3. Joules to Btu (15.8°C, Canada)

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  4. Joules to Btu (15.8°C, ISO)

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  5. Joules to Btu (3.9°C)

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  6. Joules to Btu (I.T.)

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  7. Joules to Btu (I.T., pre-1956)

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  8. Joules to Btu (mean)

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  9. Joules to Btu (thermoc.)

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Joules

One Joule is 1 Newton Metre, ie the work done or energy transfered to an object when a one Newton force acts on it over one metre. It can also be defined as the heat energy dissipated by a current of one ampere passing through a one Ohm resistor for one second

Btu

One BTU is the energy required to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit, at a pressure of one atmosphere.