kilocalorie to joule
Live kilocalorie (kcal) to joule (J) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from kilocalorie to joule. Use the converter above for arbitrary values.
| kilocalorie (kcal) | → | joule (J) |
|---|---|---|
| 0.001 kcal | → | 4.184 J |
| 0.01 kcal | → | 41.84 J |
| 0.1 kcal | → | 418.4 J |
| 0.5 kcal | → | 2,092 J |
| 1 kcal | → | 4,184 J |
| 2 kcal | → | 8,368 J |
| 5 kcal | → | 20,920 J |
| 10 kcal | → | 41,840 J |
| 100 kcal | → | 418,400 J |
| 1,000 kcal | → | 4,184,000 J |
About the kilocalorie
1000 calories (4.184 kJ). Food labels in the US.
About the joule
SI unit of energy. 1 N·m.
How kilocalorie 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 kilocalorie to joule?
Multiply the kilocalorie value by 4,184 to get it in joule. For example, 10 kcal = 41,840 J.
What is 1 kcal in J?
1 kcal = 4,184 J.
What is 100 kcal in J?
100 kcal = 418,400 J.
What is the formula?
Linear: multiply by 4,184 (the unit factor ratio).
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