Kilojoules to Kilocalories converter

kJ to kcal — 1 kcal = 4,184 J

Convert Kilojoules to all units

J Joules
cal Calories
kcal Kilocalories
Wh Watt Hours
kWh Kilowatt Hours
BTU Btu
eV Electronvolts
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Conversion Formula

Kilojoules to Kilocalories: 1 kcal = 4,184 J

Example: To convert 500 kcal to joules: 500 × 4,184 = 2,092,000 J

Quick Reference: Kilojoules to Kilocalories

KilojoulesKilocalories
1 kJ0.239006 kcal
5 kJ1.195 kcal
10 kJ2.3901 kcal
25 kJ5.9751 kcal
50 kJ11.9503 kcal
100 kJ23.9006 kcal
500 kJ119.5 kcal
1,000 kJ239.01 kcal

Frequently Asked Questions

How do I convert Kilojoules to Kilocalories?

Multiply your kilojoules 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 kJ in kcal?

1 kJ equals 0.239006 kcal. 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.