Kilojoules to Calories Converter
How to convert kilojoules to calories
calories = kilojoules × 239.005736
To convert kilojoules to calories, multiply the number of kilojoules by 239.005736.
1 kJ = 239.005736 cal
Examples
- The EU daily reference intake for an adult: 8,400 kJ × 239.005736 = 2,007,648.18 cal
- 500 kJ × 239.005736 = 119,502.868 cal
Good to know
This is the thermochemical calorie, exactly 4.184 J. It is the small calorie: the "Calories" on food labels are kilocalories, 1000 times larger. The International Table calorie (4.1868 J) is slightly different.
Kilojoules to calories conversion table
| Kilojoules (kJ) | Calories (cal) |
|---|---|
| 1 kJ | 239.005736 cal |
| 10 kJ | 2,390.05736 cal |
| 50 kJ | 11,950.2868 cal |
| 100 kJ | 23,900.5736 cal |
| 200 kJ | 47,801.1472 cal |
| 300 kJ | 71,701.7208 cal |
| 400 kJ | 95,602.2945 cal |
| 500 kJ | 119,502.868 cal |
| 800 kJ | 191,204.589 cal |
| 1,000 kJ | 239,005.736 cal |
| 1,500 kJ | 358,508.604 cal |
| 2,000 kJ | 478,011.472 cal |
| 4,000 kJ | 956,022.945 cal |
| 6,000 kJ | 1,434,034.42 cal |
| 8,400 kJ | 2,007,648.18 cal |
| 8,700 kJ | 2,079,349.9 cal |
| 10,000 kJ | 2,390,057.36 cal |
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.
- Calorie (cal)
- The thermochemical calorie is defined as exactly 4.184 joules, roughly the energy needed to heat one gram of water by one degree Celsius.