kJ to Calories
Energy unit converter
Convert between kilojoules (kJ) and kilocalories (kcal). Enter a value in either unit and get the equivalent in the other.
Other Calculators
Understanding kJ and Calories
What's the difference?
Both kilojoules (kJ) and kilocalories (kcal) measure energy in food. Calories are commonly used in the US, UK, and Canada, while kilojoules are standard in Australia, New Zealand, and many other countries. They measure exactly the same thing — just in different units.
The Conversion
kJ to Calories
Calories = kJ ÷ 4.184
Divide kilojoules by 4.184 to get kilocalories
Calories to kJ
kJ = Calories × 4.184
Multiply kilocalories by 4.184 to get kilojoules
Common values
| kcal | kJ | Context |
|---|---|---|
| 100 | 418 | Small snack |
| 500 | 2,092 | Typical meal |
| 2,000 | 8,368 | Daily intake (avg) |
| 2,500 | 10,460 | Active adult |