Kilojoule to Kilocalorie Converter (kJ to kcal)
1 kilojoule = 0.239006 kilocalorie. The "calorie" on food labels is a kilocalorie (kcal).
Result
8,700 kJ = 2,079.3499 kcal
How to convert kilojoule to kilocalorie
The "calorie" on food labels is a kilocalorie (kcal). One kcal is exactly 4.184 kJ. Europe, Australia and New Zealand show kilojoules, while the US shows Calories, so food labels often need converting.
Formula
kcal = kJ × 0.239006
Worked example
8,700 kJ × 0.239006 = 2,079.35 kcal
Kilojoule to Kilocalorie quick-reference table
| Kilojoule (kJ) | Kilocalorie (kcal) |
|---|---|
| 100 kJ | 23.9006 kcal |
| 500 kJ | 119.503 kcal |
| 1,000 kJ | 239.006 kcal |
| 2,000 kJ | 478.011 kcal |
| 5,000 kJ | 1,195.03 kcal |
| 8,700 kJ | 2,079.35 kcal |
Real-life examples
A 8,700 kJ daily intake is 2,079 kcal, and a 1,500 kJ meal is 358.5 kcal.
Frequently asked questions
How many kJ are in a kcal?
One kcal is 4.184 kJ.
Is a Calorie the same as a kcal?
Yes. A capital-C Calorie on food packages is a kilocalorie, equal to 1,000 small calories.
What is 1 kilojoule in kilocalorie?
1 kilojoule = 0.239006 kilocalorie (kJ to kcal).
What is the formula to convert kJ to kcal?
kcal = kJ × 0.239006. For example, 8,700 kJ × 0.239006 = 2,079.35 kcal.
How do I convert kcal back to kJ?
Use the reverse converter: 1 kilocalorie = 4.184 kilojoule. Check: 2,079.35 kcal converts back to 8,700 kJ.
Reverse conversion
Need the other direction? Kilocalorie to Kilojoule converter (kcal to kJ): 1 kilocalorie = 4.184 kilojoule.
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