Calorie vs kilocalorie: what is the difference?
Scientific calorie vs food Calorie (kcal). Convert between cal, kcal and kJ with internal calculator links.
In science, a calorie (cal) is a small unit. Nutrition uses the kilocalorie (kcal), equal to 1000 cal. When people say “calories on a label”, they almost always mean kilocalories.
Convert cal ↔ kcal
Add kilojoules
Many regions list kJ. Bridge all three units:
- 1 kcal in kJ
- 4184 kilojoule in kilocalorie (≈ 1000 kcal)
- 1000 cal in kJ
Browse all energy units on /calories/units/ or jump to the kcal → kJ calculator.
Calculate here
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