Kilojoules to Kilocalories Converter kJ → kcal
1 kilojoule (kJ) = 0.2390057361 kilocalories (kcal). Type a value below — the conversion happens instantly, entirely on your device.
1 kJ = 0.2390057361 kcal
1 kilojoules = 0.23900574 kilocalories
1 × 0.239006 = 0.23900574
1 kJ equals 0.239006 kcal, so multiplying by 0.239006 converts the value. The result describes the exact same quantity — only the measuring stick changes.
How to convert kilojoules to kilocalories
kilocalories = kilojoules × 0.2390057361 — multiply the kilojoule value by 0.239006.
Example: 10 kJ = 2.39006 kcal.
To convert the other way: kilojoules = kilocalories ÷ 0.2390057361 — or use the dedicated kcal to kJ converter .
Kilojoules to Kilocalories conversion table
| Kilojoules (kJ) | Kilocalories (kcal) |
|---|---|
| 0.1 | 0.023900574 |
| 0.25 | 0.059751434 |
| 0.5 | 0.11950287 |
| 1 | 0.23900574 |
| 2 | 0.47801147 |
| 3 | 0.71701721 |
| 4 | 0.95602294 |
| 5 | 1.1950287 |
| 6 | 1.4340344 |
| 7 | 1.6730402 |
| 8 | 1.9120459 |
| 9 | 2.1510516 |
| 10 | 2.3900574 |
| 15 | 3.585086 |
| 20 | 4.7801147 |
| 25 | 5.9751434 |
| 30 | 7.1701721 |
| 40 | 9.5602294 |
| 50 | 11.950287 |
| 75 | 17.92543 |
| 100 | 23.900574 |
| 250 | 59.751434 |
| 500 | 119.50287 |
| 1000 | 239.00574 |
About the units
What is a kilojoule?
A kilojoule (kJ) is 1,000 joules. Food energy on labels in Australia, NZ and the EU is stated in kilojoules alongside or instead of kilocalories.
What is a kilocalorie?
A kilocalorie (kcal) is 4,184 joules — identical to the food "Calorie" (capital C) on US nutrition labels. A 2,000-Calorie diet is 2,000 kcal or 8,368 kJ.
Frequently asked questions
How many kilocalories are in 1 kilojoule?
1 kilojoule (kJ) = 0.2390057361 kilocalories (kcal).
What is the formula to convert kilojoules to kilocalories?
kilocalories = kilojoules × 0.2390057361 — multiply the kilojoule value by 0.239006.
How do I convert kJ to kcal without a calculator?
Multiply by 0.239 for a close estimate. Exact factor: 1 kJ = 0.2390057361 kcal.
Is this kJ-to-kcal converter accurate and private?
Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.