Kilojoules to Kilocalories Converter
How to convert kilojoules to kilocalories
kilocalories = kilojoules ÷ 4.184
To convert kilojoules to kilocalories, divide the number of kilojoules by 4.184.
1 kJ = 0.239005736 kcal
Examples
- The EU daily reference intake for an adult: 8,400 kJ ÷ 4.184 = 2,007.64818 kcal
- 500 kJ ÷ 4.184 = 119.502868 kcal
Good to know
One kilocalorie is exactly 4.184 kilojoules, so 2000 kcal is 8368 kJ. Food labels round differently: the EU reference intake pairs 2000 kcal with 8400 kJ.
The kilocalorie is the food "Calorie" (capital C) shown on nutrition labels. It is based here on the thermochemical calorie, so 1 kcal is exactly 4.184 kJ.
Kilojoules to kilocalories conversion table
| Kilojoules (kJ) | Kilocalories (kcal) |
|---|---|
| 1 kJ | 0.239005736 kcal |
| 10 kJ | 2.39005736 kcal |
| 50 kJ | 11.9502868 kcal |
| 100 kJ | 23.9005736 kcal |
| 200 kJ | 47.8011472 kcal |
| 300 kJ | 71.7017208 kcal |
| 400 kJ | 95.6022945 kcal |
| 500 kJ | 119.502868 kcal |
| 800 kJ | 191.204589 kcal |
| 1,000 kJ | 239.005736 kcal |
| 1,500 kJ | 358.508604 kcal |
| 2,000 kJ | 478.011472 kcal |
| 4,000 kJ | 956.022945 kcal |
| 6,000 kJ | 1,434.03442 kcal |
| 8,400 kJ | 2,007.64818 kcal |
| 8,700 kJ | 2,079.3499 kcal |
| 10,000 kJ | 2,390.05736 kcal |
Unit definitions
- Kilojoule (kJ)
- A kilojoule is 1000 joules. It is the unit for food energy on nutrition labels in Australia, New Zealand and, alongside kilocalories, the European Union.
- Kilocalorie (kcal)
- A kilocalorie is 1000 calories, exactly 4184 joules using the thermochemical calorie. It is the unit of food energy on nutrition labels.