Table Of Contents
Kilojoules to calories Conversion
1 kilojoules (kJ) is equal to 239.0057361 calories (cal).
1 kJ = 239.0057361 cal
or
1 cal = 0.004184 kJ
Formula
To convert a energy from kilojoules (kJ) to calories (cal), multiply the energy in kilojoules by 239.0057361
e(cal) = e(kJ) × 239.0057361
Examples:
Convert 50 kilojoules to calories:
e(cal) = 50kJ × 239.0057361 = 11950.28681 cal
Conversion table
| Kilojoules (kJ) | Calories (cal) |
|---|---|
| 1 kJ | 239.005736138 cal |
| 2 kJ | 478.011472275 cal |
| 3 kJ | 717.017208413 cal |
| 5 kJ | 1195.028680688 cal |
| 10 kJ | 2390.057361377 cal |
| 20 kJ | 4780.114722753 cal |
| 25 kJ | 5975.143403442 cal |
| 50 kJ | 11950.286806883 cal |
| 100 kJ | 23900.573613767 cal |
| 250 kJ | 59751.434034417 cal |
| 500 kJ | 119502.868068834 cal |
| 1000 kJ | 239005.736137667 cal |
| Calories (cal) | Kilojoules (kJ) |
|---|---|
| 1 cal | 0.004184 kJ |
| 2 cal | 0.008368 kJ |
| 3 cal | 0.012552 kJ |
| 5 cal | 0.02092 kJ |
| 10 cal | 0.04184 kJ |
| 20 cal | 0.08368 kJ |
| 25 cal | 0.1046 kJ |
| 50 cal | 0.2092 kJ |
| 100 cal | 0.4184 kJ |
| 250 cal | 1.046 kJ |
| 500 cal | 2.092 kJ |
| 1000 cal | 4.184 kJ |
Frequently asked questions
How do I convert kilojoules to calories?
Multiply the value in kilojoules by 239.0057361 to get the result in calories. For example, 5 kJ × 239.0057361 = 1195.028680688 cal.
How many calories are in 1 kilojoules?
1 kilojoules (kJ) is equal to 239.005736138 calories (cal).
How do I convert calories back to kilojoules?
Use the inverse operation: divide the value in calories by 239.0057361 to get the result in kilojoules.
How accurate is the kilojoules to calories conversion?
The converter multiplies by the conversion factor 239.0057361 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- NIST Guide to the SI, Appendix B.8: Factors for Units Listed Alphabetically (NIST SP 811, 2008 edition)
- NIST Guide to the SI (SP 811), Footnotes (notes 22 and 23)
- CODATA Value: electron volt-joule relationship (NIST Fundamental Physical Constants)