Calories to Kilojoules Converter

Instantly convert Calories (cal) to Kilojoules (kJ). Free online converter with formula and table.

cal
kJ
1 cal = 0.004184 kJ
1 Calorie = 0.004184 kilojoules
1 Kilojoule = 239.0057 calories

Calories to Kilojoules Conversion Table

Calories (cal)Kilojoules (kJ)
10.004184
20.008368
30.012552
40.016736
50.02092
100.04184
150.06276
200.08368
250.1046
500.2092
1000.4184
5002.092
1,0004.184

How to Convert Calories to Kilojoules

kJ = cal × 0.004184

Example

Convert 10 calories to kilojoules:

10 cal × 0.004184 = 0.04184 kJ

About These Units

Frequently Asked Questions

How many Kilojoules are in a Calorie?

There are 0.004184 Kilojoules in one Calorie.

How do I convert Calories to Kilojoules?

To convert Calories to Kilojoules, multiply the value in Calories by 0.004184. For example, 10 Calories = 10 × 0.004184 = 0.04184 Kilojoules.

What is the formula to convert Calories to Kilojoules?

The formula is: Kilojoules (kJ) = Calories (cal) × 0.004184

How do I convert Kilojoules back to Calories?

To convert Kilojoules to Calories, multiply by 239.0057 (or divide by 0.004184).