KJ to kcal conversion formula
1 kilojoule = 0.239006 kilocalorie
The kilojoule (kJ) is the metric energy unit used on Australian and European food labels (1 kcal = 4.184 kJ).
The kilocalorie (kcal), called “calorie” on food labels, equals 4,184 joules — the energy to heat 1 kg of water by 1 °C.
KJ to kcal conversion table
| kJ | kcal |
|---|---|
| 1 kJ | 0.239006 kcal |
| 2 kJ | 0.478011 kcal |
| 3 kJ | 0.717017 kcal |
| 5 kJ | 1.195 kcal |
| 10 kJ | 2.3901 kcal |
| 20 kJ | 4.7801 kcal |
| 25 kJ | 5.9751 kcal |
| 50 kJ | 11.9503 kcal |
| 100 kJ | 23.9006 kcal |
| 250 kJ | 59.7514 kcal |
| 500 kJ | 119.5029 kcal |
| 1000 kJ | 239.0057 kcal |
How to convert kJ to kcal
- Write down the value in kJ you want to convert.
- Multiply it by 0.239006 — or use the converter above, which does it instantly.
- Read your result in kcal. Done.
Frequently asked questions
How many kcal is 1 kJ?
Using the official conversion factor, 1 kilojoule = 0.239006 kilocalorie. The converter above handles any value instantly.
What is the formula to convert kilojoule to kilocalorie?
1 kilojoule = 0.239006 kilocalorie. Multiply any value in kJ by this factor to get kcal.
Is this kJ to kcal converter free?
Yes — 100% free, unlimited, with no sign-up. CalculUnits is funded by non-intrusive ads, never by paywalls.