How to convert kilojoules to kilocalories
kcal = kJ × 0.2390057361
Example: 5 kJ × 0.2390057361 = 1.195028681 kcal
Kilojoules to Kilocalories table
| Kilojoules (kJ) | Kilocalories (kcal) |
|---|---|
| 0.5 kJ | 0.11950287 kcal |
| 1 kJ | 0.23900574 kcal |
| 2 kJ | 0.47801147 kcal |
| 3 kJ | 0.71701721 kcal |
| 4 kJ | 0.95602294 kcal |
| 5 kJ | 1.1950287 kcal |
| 6 kJ | 1.4340344 kcal |
| 7 kJ | 1.6730402 kcal |
| 8 kJ | 1.9120459 kcal |
| 9 kJ | 2.1510516 kcal |
| 10 kJ | 2.3900574 kcal |
| 15 kJ | 3.585086 kcal |
| 20 kJ | 4.7801147 kcal |
| 25 kJ | 5.9751434 kcal |
| 30 kJ | 7.1701721 kcal |
| 40 kJ | 9.5602294 kcal |
| 50 kJ | 11.950287 kcal |
| 75 kJ | 17.92543 kcal |
| 100 kJ | 23.900574 kcal |
| 250 kJ | 59.751434 kcal |
| 500 kJ | 119.50287 kcal |
| 1,000 kJ | 239.00574 kcal |
About these units
Kilojoules (kJ): A kilojoule is 1,000 joules. Food labels in Europe and Australia show energy in kJ.
Kilocalories (kcal): A kilocalorie is the “Calorie” on food labels: 4.184 kilojoules.
Frequently asked questions
How many kilocalories are in 1 kilojoule?
1 kilojoule (kJ) equals 0.2390057361 kilocalories (kcal).
How do I convert kJ to kcal?
Multiply the value in kilojoules by 0.2390057361. For example, 5 kJ × 0.2390057361 = 1.195028681 kcal.
How do I convert kilocalories back to kilojoules?
Multiply by 4.184 (or divide by 0.2390057361). 1 kcal = 4.184 kJ.
What is a kilojoule?
A kilojoule is 1,000 joules. Food labels in Europe and Australia show energy in kJ.
Conversion factors come from exact international definitions (NIST SP 811, BIPM) where they exist. Results show up to 10 significant digits. Need every energy unit at once? Use the Energy Converter.