AbraCalc

1 BTU to Joules

1 BTU equals approximately 1,055.06 joules.

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How to use this tool

  1. Enter energy and from unit in the fields above.
  2. Results update instantly as you type — or click Calculate.
  3. Read your kilojoules and the full breakdown beneath it.

Convert 1 BTU to joules instantly with this energy converter.