Therm to Btu (15.8°C, ISO) conversion

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

  1. Therms (EC) to Btu (15.8°C, ISO)

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  2. Therms (US) to Btu (15.8°C, ISO)

    ConvertTable

  3. Therms (UK) to Btu (15.8°C, ISO)

    ConvertTable

Therm

Btu (15.8°C, ISO)

One BTU is defined as the energy required at 1 atmosphere to heat 1 avoirdupois pound of liquid water by 1 degree Fahrenheit. One Btu (15.8°C, ISO) equates to 1,054.5 J