Energy Converter

Convert energy between joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, BTU, and electron volts.

Embed this tool on your site

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How to use this tool

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

References & sources

Wikipedia: Energy