Convert kJ to kcal
1 kilojoule equals 0.239006 kilocalories. To convert kilojoules to kilocalories, divide the number of kilojoules by 4.184: for example, 10 kJ is 2.39006 kcal. Ethical Tube's free kJ to kcal converter does the math as you type, and the chart below lists common values.
1 kJ = 0.239006 kcal
- 1 kJ
- 0.239006 kcal
- 1 kcal
- 4.184 kJ
- Formula
- kcal = kJ × 0.239006
- Measures
- Energy
- Price
- Free
- Works offline
- Yes
Conversion chart
kJ to kcal chart
| Kilojoules (kJ) | Kilocalories (kcal) |
|---|---|
| 1 kJ | 0.239006 kcal |
| 2 kJ | 0.478011 kcal |
| 3 kJ | 0.717017 kcal |
| 4 kJ | 0.956023 kcal |
| 5 kJ | 1.19503 kcal |
| 6 kJ | 1.43403 kcal |
| 8 kJ | 1.91205 kcal |
| 10 kJ | 2.39006 kcal |
| 12 kJ | 2.86807 kcal |
| 15 kJ | 3.58509 kcal |
| 20 kJ | 4.78011 kcal |
| 25 kJ | 5.97514 kcal |
| 50 kJ | 11.9503 kcal |
| 100 kJ | 23.9006 kcal |
How it works
How to convert kJ to kcal
Know the formula
kcal = kJ × 0.239006. In words: divide the number of kilojoules by 4.184.
Work an example
10 kJ → 2.39006 kcal. Round to two or three decimal places for everyday use.
Or type it in
Enter any value in the converter above and the answer appears instantly, in both directions.
Good to know
About energy units
- Food labels use kilocalories (kcal), often written as Calories with a capital C. 1 kcal is 1,000 calories, or 4.184 kilojoules.
- This converter uses the thermochemical calorie (4.184 joules) and the international BTU (1,055.06 joules).
FAQ
Questions, answered
How many kilocalories are in a kilojoule?
There are 0.239006 kilocalories in 1 kilojoule. To convert kilojoules to kilocalories, divide the number of kilojoules by 4.184.
What is 10 kJ in kcal?
10 kilojoules is 2.39006 kilocalories.
How do you convert kcal back to kJ?
Multiply the number of kilocalories by 4.184. 1 kilocalorie is 4.184 kilojoules.
Is this kJ to kcal converter free?
Yes. It's free and works in any browser, even offline once the page has loaded. The answer updates as you type, and nothing you enter is sent anywhere.
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