kJ to Calories Converter

Kilojoules and kilocalories both measure food energy — the conversion is simple.

What this calculator does

1 kcal = 4.184 kJ.

How it works

1 kJ = 0.2390 kcal.

Frequently asked questions

Is kJ the same as calories?

No. 1 kilocalorie (kcal or 'Calorie') = 4.184 kilojoules (kJ).