How to use the Kilocalories to Kilojoules Converter
- Type the number of kilocalories in the box
- The value in kilojoules appears instantly
- Use the table for common values, or switch units to convert anything else
Kilocalories to Kilojoules formula
kJ = kcal × 4.184
Example: 150 kcal × 4.184 = 627.6 kJ.
💡 A 2,000-Calorie daily diet is 8,368 kJ.
Kilocalories to Kilojoules conversion chart
| Kilocalories | Kilojoules |
|---|---|
| 1 kcal | 4.184 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 |
| 500 kcal | 2,092 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 |
| 3,000 kcal | 12,552 kJ |
Frequently asked questions
How do I convert kilocalories to kilojoules?
Use the formula kJ = kcal × 4.184. For example, 150 kcal = 627.6 kJ.
How many kilojoules are in 1 kilocalorie (food calorie)?
1 kcal = 4.184 kJ.
Any handy reference points?
A 2,000-Calorie daily diet is 8,368 kJ.
Is this kilocalories to kilojoules converter accurate?
Yes. It uses exact definitions (for example, 1 inch = 2.54 cm and 1 lb = 0.45359237 kg) and shows up to 10 significant digits.
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