Kilojoules to Calories formula
calories = kilojoules × 239.006
Multiply the number of kilojoules by 239.006 to get calories. To go the other way, multiply by 0.004184 instead, or use the calories to kj converter.
Kilojoules to Calories conversion table
Common kj to calories values, rounded for reading. The converter above keeps full precision.
| Kilojoules | Calories |
|---|---|
| 1 kJ | 239.006 cal |
| 2 kJ | 478.011 cal |
| 3 kJ | 717.017 cal |
| 4 kJ | 956.023 cal |
| 5 kJ | 1,195.03 cal |
| 10 kJ | 2,390.06 cal |
| 15 kJ | 3,585.09 cal |
| 20 kJ | 4,780.11 cal |
| 25 kJ | 5,975.14 cal |
| 50 kJ | 11,950.3 cal |
| 75 kJ | 17,925.4 cal |
| 100 kJ | 23,900.6 cal |
| 250 kJ | 59,751.4 cal |
| 500 kJ | 119,503 cal |
| 1,000 kJ | 239,006 cal |
Worked example
To convert 10 kJ to calories, multiply by 239.006: the result is 2,390.06 cal. A nutritional Calorie is a kilocalorie, equal to 4,184 joules. The smaller scientific calorie equals 4.184 joules.
Frequently asked questions
How many calories are in a kilojoule?
One kilojoule equals 239.006 calories (1 kJ = 239.006 cal).
What is 10 kilojoules in calories?
10 kJ converts to 2,390.06 cal. Enter any other value in the converter above to see it recalculated instantly.
How do I convert calories back to kilojoules?
Reverse the calculation: one calorie equals 0.004184 kilojoules. You can also swap the units in the converter or open the calories to kj page.
Related energy conversions
Need a different pair? Open the full energy converter to choose any two units.