Instantly convert kilojoules (kJ) to kilocalories (kcal). Bidirectional, accurate, and free.
To convert kilojoules to kilocalories, use the formula kilocalories = kilojoules × 0.239. For example, 2 kilojoules equals 0.478 kilocalories. Type any number into the calculator above and the result appears instantly — you can also type into the kilocalories box to convert the other way.
| Kilojoules | Kilocalories |
|---|---|
| 50 kJ | 11.9503 kcal |
| 100 kJ | 23.9006 kcal |
| 150 kJ | 35.8509 kcal |
| 200 kJ | 47.8011 kcal |
| 250 kJ | 59.7514 kcal |
| 300 kJ | 71.7017 kcal |
| 400 kJ | 95.6023 kcal |
| 500 kJ | 119.5 kcal |
There are 0.239 kilocalories in one kilojoule. To convert any value, apply the formula kilocalories = kilojoules × 0.239.
The formula is kilocalories = kilojoules × 0.239. Enter a value above and the result updates instantly in both directions.
Yes. It uses the exact internationally-defined conversion factor, so results match official standards to several decimal places.
Yes — the converter is bidirectional. Type in either box and the other updates automatically using the inverse formula.