Common Converters

Convert Calories to Kilojoules

Use our accurate converter to change calories into kilojoules. This tool is simple to use and works instantly.

How to Calculate

To change calories to kilojoules, you just need to know the conversion factor.

Rule: 1 Calories = 0.0041868 Kilojoules

Calories to Kilojoules
Pre-defined calculator for direct calories to kilojoules conversion.
Calories (IT) (cal)
0
Kilojoules (kJ)
Formula: 1 Calories = 0.0041868 Kilojoules

Unit Information

About Calories

Definition: The calorie is a unit for measuring heat and food energy.

History: It was first defined by the heat needed to warm up a small amount of water.

Where it is used: Used mostly in food labels and for studying heat.

Calories to Kilojoules Conversion Table

Calories [cal]Kilojoules [kj]
0.01 cal0.000041868 kj
0.1 cal0.00041868 kj
1 cal0.0041868 kj
2 cal0.0083736 kj
3 cal0.0125604 kj
5 cal0.020934 kj
10 cal0.041868 kj
20 cal0.083736 kj
50 cal0.20934 kj
100 cal0.41868 kj
1000 cal4.1868 kj

How to Convert Calories to Kilojoules

Calculation: To convert calories to kilojoules, multiply the value by the conversion factor (0.0041868).

Example: convert 15 cal to kj:
15 cal = 15 × 0.0041868 kj = 0.062802 kj

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