calorie to joule
Live calorie (cal) to joule (J) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from calorie to joule. Use the converter above for arbitrary values.
| calorie (cal) | → | joule (J) |
|---|---|---|
| 0.001 cal | → | 0.004184 J |
| 0.01 cal | → | 0.04184 J |
| 0.1 cal | → | 0.4184 J |
| 0.5 cal | → | 2.092 J |
| 1 cal | → | 4.184 J |
| 2 cal | → | 8.368 J |
| 5 cal | → | 20.92 J |
| 10 cal | → | 41.84 J |
| 100 cal | → | 418.4 J |
| 1,000 cal | → | 4,184 J |
About the calorie
4.184 J. The energy to heat 1 g water by 1 °C.
About the joule
SI unit of energy. 1 N·m.
How calorie 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 calorie to joule?
Multiply the calorie value by 4.184 to get it in joule. For example, 10 cal = 41.84 J.
What is 1 cal in J?
1 cal = 4.184 J.
What is 100 cal in J?
100 cal = 418.4 J.
What is the formula?
Linear: multiply by 4.184 (the unit factor ratio).
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