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Kilocalories to Kilojoules
Type a value in either box. 1 kcal = 4.184 kJ.
How to convert kilocalories to kilojoules
1 kcal = 4.184 kJ, and 1 kJ = 0.2390057361 kcal. To convert kilocalories to kilojoules, use:
kJ = kcal × 4.184
Example: convert 250 kcal to kilojoules: 250 × 4.184 = 1046, so 250 kcal = 1046 kJ.
Good to know
Food labels in many countries list both. The "Calories" on US labels are kilocalories, so 250 Calories is 250 kcal, or about 1,046 kJ.
Kilocalories to Kilojoules chart
| Kilocalories (kcal) | Kilojoules (kJ) |
|---|---|
| 1 kcal | 4.184 kJ |
| 10 kcal | 41.84 kJ |
| 50 kcal | 209.2 kJ |
| 100 kcal | 418.4 kJ |
| 150 kcal | 627.6 kJ |
| 200 kcal | 836.8 kJ |
| 250 kcal | 1,046 kJ |
| 300 kcal | 1,255.2 kJ |
| 400 kcal | 1,673.6 kJ |
| 500 kcal | 2,092 kJ |
| 750 kcal | 3,138 kJ |
| 1,000 kcal | 4,184 kJ |
| 1,500 kcal | 6,276 kJ |
| 2,000 kcal | 8,368 kJ |
| 2,500 kcal | 10,460 kJ |
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