Kilocalories to Kilojoules converter
kcal to kJ — 1 kcal = 4,184 J
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Convert Kilocalories to all units
J Joules—
kJ Kilojoules—
cal Calories—
Wh Watt Hours—
kWh Kilowatt Hours—
BTU Btu—
eV Electronvolts—
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Conversion Formula
Kilocalories to Kilojoules: 1 kcal = 4,184 J
Example: To convert 500 kcal to joules: 500 × 4,184 = 2,092,000 J
Quick Reference: Kilocalories to Kilojoules
| Kilocalories | Kilojoules |
|---|---|
| 1 kcal | 4.184 kJ |
| 5 kcal | 20.92 kJ |
| 10 kcal | 41.84 kJ |
| 25 kcal | 104.6 kJ |
| 50 kcal | 209.2 kJ |
| 100 kcal | 418.4 kJ |
| 500 kcal | 2,092 kJ |
| 1,000 kcal | 4,184 kJ |
Frequently Asked Questions
How do I convert Kilocalories to Kilojoules?
Multiply your kilocalories value by the conversion factor. To convert 500 kcal to joules: 500 × 4,184 = 2,092,000 J. You can also use the converter above for instant results.
What is kcal in kJ?
1 kcal equals 4.184 kJ. This is based on the standard conversion factor: 1 kcal = 4,184 J.
Is this converter accurate?
Yes. ConvertFast uses precise conversion factors computed client-side in your browser. Results are accurate to 6 significant digits, which covers all practical use cases.