Kilojoule to Calorie Converter
Convert kilojoules (kJ) to calories (kcal) and back.
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How to do it
- 1Add the text
Paste or type the text or amount here.
- 2See the result
The result appears right away as you type.
- 3Copy it
Copy the result and use it anywhere. Your text goes nowhere.
About this tool
Australian food labels show energy in kilojoules. Enter kJ to get kilocalories, or enter kcal to get kJ. One kilocalorie equals 4.184 kilojoules, and what people call a calorie in food is a kilocalorie.
Frequently asked questions
How many kJ are in a calorie?
One kcal is 4.184 kJ.
How many kJ should I eat a day?
An average adult guide is about 8,700 kJ (2,080 kcal), but needs vary with age, size and activity.