kilojoule to joule
Live kilojoule (kJ) to joule (J) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from kilojoule to joule. Use the converter above for arbitrary values.
| kilojoule (kJ) | → | joule (J) |
|---|---|---|
| 0.001 kJ | → | 1 J |
| 0.01 kJ | → | 10 J |
| 0.1 kJ | → | 100 J |
| 0.5 kJ | → | 500 J |
| 1 kJ | → | 1,000 J |
| 2 kJ | → | 2,000 J |
| 5 kJ | → | 5,000 J |
| 10 kJ | → | 10,000 J |
| 100 kJ | → | 100,000 J |
| 1,000 kJ | → | 1,000,000 J |
About the kilojoule
1000 J. Food labels in some countries.
About the joule
SI unit of energy. 1 N·m.
How kilojoule to joule conversion works
Both units belong to Energy. Unitbox first expresses the input in the category reference unit (J), then expresses that same quantity in joule.
The right unit depends on the convention used by your industry, country, instrument, or source document.
Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.
Frequently asked questions
Frequently Asked Questions
How do I convert kilojoule to joule?
Multiply the kilojoule value by 1,000 to get it in joule. For example, 10 kJ = 10,000 J.
What is 1 kJ in J?
1 kJ = 1,000 J.
What is 100 kJ in J?
100 kJ = 100,000 J.
What is the formula?
Linear: multiply by 1,000 (the unit factor ratio).
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