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Energy Converter

Convert energy between joules, calories, kWh and BTUs.

Energy result

0.001 Kilojoule (kJ)

What Is a Energy Converter?

The Energy Converter converts energy between joules, kilojoules, calories, kilowatt-hours, BTUs, and more. Electricity billing, nutrition, heating, and physics problems all involve energy units, and this tool converts them instantly with precision. This free online converter is also useful when you are searching for energy, joules, kilojoules, calories, kWh, BTU. It is designed to give a clear result quickly, without requiring a separate desktop application or manual conversion formula. Common use cases include electricity, nutrition, heating, physics and engineering. For important technical, engineering, financial, medical, or production decisions, always confirm the applicable standard and precision requirements.

How to Use This Energy Converter

  1. 1
    Enter the energy quantity from your electricity, nutrition, heating, or physics data.
  2. 2
    Choose the original energy unit.
  3. 3
    Select the unit required for comparison.
  4. 4
    Review the converted energy value.
  5. 5
    Copy it into your calculation or report.

Frequently Asked Questions

One kilowatt-hour equals 3,600,000 joules (3.6 MJ).
One kilojoule equals 0.239006 kilocalories (dietary calories).
A British Thermal Unit is the energy required to raise one pound of water by one degree Fahrenheit.
One kilowatt-hour equals exactly 3,600,000 joules.

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