Kilojoules to Kilocalories Converter
Convert kilojoules (kJ) to kilocalories (food Calories) (kcal), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 kJ = 0.239005736138 kcal
- 1 × 0.239005736138 = 0.239005736138 kcal
How to convert kilojoules to kilocalories
1 kJ = 0.239005736138 kcal, so multiply by 0.239005736138 to go from kilojoules to kilocalories (food Calories). Going the other way, 1 kcal = 4.184 kJ.
kcal = kJ × 0.239005736138 kJ = kcal × 4.184
Worked example:
1 kJ = 0.239005736138 kcal 5 × 0.239005736138 = 1.19502868069 kcal
Kilojoules to kilocalories table
| Kilojoules | Kilocalories |
|---|---|
| 1 kJ | 0.239005736138 kcal |
| 2 kJ | 0.478011472275 kcal |
| 3 kJ | 0.717017208413 kcal |
| 4 kJ | 0.956022944551 kcal |
| 5 kJ | 1.19502868069 kcal |
| 6 kJ | 1.43403441683 kcal |
| 7 kJ | 1.67304015296 kcal |
| 8 kJ | 1.9120458891 kcal |
| 9 kJ | 2.15105162524 kcal |
| 10 kJ | 2.39005736138 kcal |
| 15 kJ | 3.58508604207 kcal |
| 20 kJ | 4.78011472275 kcal |
| 25 kJ | 5.97514340344 kcal |
| 30 kJ | 7.17017208413 kcal |
| 40 kJ | 9.56022944551 kcal |
| 50 kJ | 11.9502868069 kcal |
| 75 kJ | 17.9254302103 kcal |
| 100 kJ | 23.9005736138 kcal |
| 250 kJ | 59.7514340344 kcal |
| 500 kJ | 119.502868069 kcal |
| 1000 kJ | 239.005736138 kcal |
About the units
- Kilojoules (kJ)
- Kilojoules, a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).
- Kilocalories (kcal)
- Kilocalories (food Calories), a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
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