Convert Kilocalories to Kilojoules
One kilocalorie equals 4.184 kilojoules. Type any value to convert kilocalories to kilojoules instantly — with a full reference table below.
Convert Kilocalories to Kilojoules
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Conversion formula
To convert kilocalories to kilojoules, multiply by 4.184. One kilocalorie equals 4.184 kJ, and one kilojoule equals 0.239006 kcal.
Kilocalories to Kilojoules table
About converting Kilocalories to Kilojoules
Kilocalories (kcal) and Kilojoules (kJ) are both units of energy. The exact factor is 1 kcal = 4.184 kJ, so multiply by 4.184 to go from kilocalories to kilojoules (or divide to go back).
The conversion is exact and runs entirely in your browser. Need the reverse? Use the Kilojoules to Kilocalories converter, or the full unit converter for every unit at once.
Frequently asked questions
How many kilojoules are in one kilocalorie?
One kilocalorie equals 4.184 kilojoules.
How do I convert kilocalories to kilojoules?
Multiply the number of kilocalories by 4.184. For example, 10 kilocalories = 41.84 kilojoules.
What is 5 kilocalories in kilojoules?
5 kilocalories is 20.92 kilojoules.