Convert Kilocalories to Joules
One kilocalorie equals 4,184 joules. Type any value to convert kilocalories to joules instantly — with a full reference table below.
Convert Kilocalories to Joules
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Conversion formula
To convert kilocalories to joules, multiply by 4,184. One kilocalorie equals 4,184 J, and one joule equals 0.000239 kcal.
Kilocalories to Joules table
About converting Kilocalories to Joules
Kilocalories (kcal) and Joules (J) are both units of energy. The exact factor is 1 kcal = 4,184 J, so multiply by 4,184 to go from kilocalories to joules (or divide to go back).
The conversion is exact and runs entirely in your browser. Need the reverse? Use the Joules to Kilocalories converter, or the full unit converter for every unit at once.
Frequently asked questions
How many joules are in one kilocalorie?
One kilocalorie equals 4,184 joules.
How do I convert kilocalories to joules?
Multiply the number of kilocalories by 4,184. For example, 10 kilocalories = 41,840 joules.
What is 5 kilocalories in joules?
5 kilocalories is 20,920 joules.