Convert kcal to kJ
1 kcal = 4.184 kJ
1 kJ = 0.239006 kcal
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How to convert kcal to kJ
Multiply the value in kcal by 4.184 to get kJ. As a formula: kJ = kcal × 4.184
Good to know
Multiply by 4.184 — the thermochemical calorie: 2,230 kcal is 9,330 kJ. A food label's two figures may not divide to exactly 4.184, because the EU calculates kJ and kcal from separately rounded nutrient factors (17 kJ against 4 kcal per gram of carbohydrate).
kcal to kJ conversion table
| kcal (kcal) | kJ (kJ) |
|---|---|
| 1 kcal | 4.184 kJ |
| 50 kcal | 209.2 kJ |
| 100 kcal | 418.4 kJ |
| 200 kcal | 836.8 kJ |
| 250 kcal | 1,046 kJ |
| 500 kcal | 2,092 kJ |
| 1,000 kcal | 4,184 kJ |
| 1,500 kcal | 6,276 kJ |
| 2,000 kcal | 8,368 kJ |
| 2,230 kcal | 9,330.32 kJ |
| 2,500 kcal | 10,460 kJ |
Related conversions
Need other units? The full Energy Unit Converter converts between every unit it supports, and the Unit Converters page lists the rest.
kcal to kJ — questions
How many kJ are in 1 kcal?
1 kcal = 4.184 kJ. Multiply the value in kcal by 4.184 to get kJ.
How do I convert kcal to kJ?
Multiply the value in kcal by 4.184. For example, 100 kcal × 4.184 = 418.4 kJ.
What is 100 kcal in kJ?
100 kcal = 418.4 kJ.
What is 250 kcal in kJ?
250 kcal = 1,046 kJ.
What is 500 kcal in kJ?
500 kcal = 2,092 kJ.
What is 2,000 kcal in kJ?
2,000 kcal = 8,368 kJ.