kJ to Cal Converter
Convert kilojoules to calories (kcal) and back – perfect for Australian food labels.
🇦🇺 Built for Australia
How to use the kJ to Cal Converter
- Enter value.
- Choose convert.
- Your results update instantly: result, small calories (cal), share of 8,700 kj daily intake.
How to convert kJ to calories
kcal = kJ ÷ 4.184 | kJ = kcal × 4.184
Quick estimate: divide kilojoules by 4. A muesli bar with 600 kJ has about 143 kcal.
Why Australia uses kilojoules
Australian and New Zealand food labels show energy in kilojoules, the metric unit. The average adult daily intake used on labels is 8,700 kJ, which is about 2,080 kcal.
| kJ | kcal |
|---|---|
| 100 | 24 |
| 500 | 120 |
| 1,000 | 239 |
| 2,000 | 478 |
| 8,700 | 2,079 |
Frequently asked questions
Is a Calorie the same as a kcal?
Yes. Food “Calories” (capital C) are kilocalories.
How many kJ should I eat a day?
8,700 kJ is the reference for an average adult; your needs depend on age, size and activity.
Last updated 15 November 2026. Results are estimates for general information and are not financial, tax, legal or medical advice.
