Kilocalories to Kilojoules
Convert kcal to kJ. 1 kilocalorie = 4.184 kJ, and 1 kilojoule = 0.239005736138 kcal.
Formula Multiply the value in kilocalories by 4.184. Kilocalories to Kilojoules table
1 kilocalorie in every unit
| Joules | 4,184 | J |
|---|---|---|
| Kilojoules | 4.184 | kJ |
| Megajoules | 0.004184 | MJ |
| Calories | 1,000 | cal |
| Watt-hours | 1.16222222222 | Wh |
| Kilowatt-hours | 0.001162222222 | kWh |
| British thermal units | 3.96566683139 | BTU |
| Foot-pounds | 3,085.96003258 | ft·lbf |
| Electronvolts | 2.611447e+22 | eV |
Food labels write kilocalories (kcal) as "Calories". Calories here are thermochemical: 1 cal = 4.184 J.
How to convert kilocalories to kilojoules
Multiply the value in kilocalories by 4.184.
For example, 10 kcal = 41.84 kJ, and 10 kJ = 2.39005736138 kcal.
Frequently asked questions
How many kilojoules are in one kilocalorie?
1 kilocalorie = 4.184 kJ.
What is 10 kcal in kJ?
10 kcal = 41.84 kJ.
How do I convert kJ back to kcal?
Divide the value in kilojoules by 4.184. 1 kilojoule = 0.239005736138 kcal.
Kilocalories to Kilojoules table
| Kilocalories (kcal) | Kilojoules (kJ) |
|---|---|
| 0.1 | 0.4184 |
| 0.5 | 2.092 |
| 1 | 4.184 |
| 2 | 8.368 |
| 3 | 12.552 |
| 4 | 16.736 |
| 5 | 20.92 |
| 6 | 25.104 |
| 7 | 29.288 |
| 8 | 33.472 |
| 9 | 37.656 |
| 10 | 41.84 |
| 15 | 62.76 |
| 20 | 83.68 |
| 25 | 104.6 |
| 30 | 125.52 |
| 50 | 209.2 |
| 75 | 313.8 |
| 100 | 418.4 |
| 250 | 1,046 |
| 500 | 2,092 |
| 1,000 | 4,184 |
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