Energy Conversion Calculator

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This calculator converts between different units of energy, including joules, microjoules, millijoules, kilojoules, and megajoules.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Enter energy value:, From:, and To: in the units shown.

Step 2

Read Converted Energy: in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Enter energy value:: 100 J; From:: Joules (J); To:: Kilojoules (kJ)

Converted Energy:: 0.1 J, μJ, mJ, kJ, or MJ

Enter energy value:: 10,000 J; From:: Microjoules (μJ); To:: Joules (J)

Converted Energy:: 0.01 J, μJ, mJ, kJ, or MJ

Enter energy value:: 5 J; From:: Kilojoules (kJ); To:: Megajoules (MJ)

Converted Energy:: 0.005 J, μJ, mJ, kJ, or MJ

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