Kilojoule to Kilocalorie
Convert kJ to kcal instantly — free, no sign-up.
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About the Kilojoule (kJ)
The Kilojoule is equal to 1,000 joules, the unit used on nutrition labels in most countries outside the US alongside (or instead of) Calories.
About the Kilocalorie (kcal)
The Kilocalorie is equal to 1,000 small calories — this is what a food label actually means by "Calories" (capital C), the standard unit for dietary energy in the US.
How to convert kJ to kcal
- Enter the value in kJ in the box above.
- The kcal equivalent updates instantly.
- Use the swap button to convert kcal back to kJ just as easily.