Joules to Kilocalories Converter
Convert joules (J) to kilocalories (kcal)
Result
0.000239005736 kcal
Kilocalories
1 J = 0.000239005736 kcal
1 J in other units
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How to convert joules to kilocalories
There are 4,184 joules in one kilocalorie, so divide the number of joules by 4,184.
kcal = J ÷ 4,184
1 J = 0.0002390057 kcal · 1 kcal = 4,184 J
Worked example
To convert 5 joules to kilocalories: 5 J ÷ 4,184 = 0.001195029 kcal.
About joules (J)
The joule is the SI unit of energy: the work done by a force of one newton over one metre.
About kilocalories (kcal)
A kilocalorie is 1,000 calories. The calories on food labels and diet plans are kilocalories.
More conversions
Joules to other units
Frequently asked questions
How many kilocalories are in one joule?
One joule equals 0.0002390057 kilocalories.
How many joules are in one kilocalorie?
One kilocalorie equals 4,184 joules.
How do I convert joules to kilocalories?
Use the formula kcal = J ÷ 4,184. For example, 5 J ÷ 4,184 = 0.001195029 kcal.