KJ to KCAL Converter
Handy for reading Australian, New Zealand and European food labels that list energy in kilojoules.
1 kJ = 0.239 kcal
kilocalories
1 kJ = 0.239 kcal
How to convert kilojoules to kilocalories
Divide the number of kilojoules by 4.184.
Formula
kcal = kJ ÷ 4.184
For a quick estimate, multiply by about 0.239006.
Examples
- 400 kJ ÷ 4.184 = 95.6023 kcal
- 1,000 kJ ÷ 4.184 = 239.0057 kcal
- 8,700 kJ ÷ 4.184 = 2,079.3499 kcal
Kilojoules to kilocalories conversion table
| Kilojoules (kJ) | Kilocalories (kcal) |
|---|---|
| 1 | 0.239 |
| 10 | 2.3901 |
| 50 | 11.9503 |
| 100 | 23.9006 |
| 200 | 47.8011 |
| 400 | 95.6023 |
| 500 | 119.5029 |
| 600 | 143.4034 |
| 800 | 191.2046 |
| 1,000 | 239.0057 |
| 1,500 | 358.5086 |
| 2,000 | 478.0115 |
| 4,000 | 956.0229 |
| 8,700 | 2,079.3499 |
| 10,000 | 2,390.0574 |
Values rounded to 4 decimal places or 4 significant digits.
About kilojoules
A kilojoule is 1,000 joules. Food labels in the EU, Australia and New Zealand show energy in kilojoules, usually next to kilocalories.
About kilocalories
A kilocalorie is 1,000 calories, or 4,184 joules. It is the "Calorie" on food labels, sometimes written with a capital C.
Frequently asked questions
How many kilocalories are in one kilojoule?
One kilojoule equals 0.239 kilocalories (rounded).
How do I convert kilojoules to kilocalories?
Divide the number of kilojoules by 4.184. For example: 1,000 kJ ÷ 4.184 = 239.0057 kcal.
How many kilojoules are in one kilocalorie?
One kilocalorie equals 4.184 kilojoules.
Is the kJ to kcal conversion exact?
Yes. The factor follows directly from the official definitions of both units, so the only rounding is in how many decimals are displayed.
Why do Australian labels mention 8,700 kJ?
Australian food labels use 8,700 kJ as the average adult daily energy intake for percentage values. That is about 2,079 kcal.