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Convert joule to kilocalorie

Here you can quickly calculate how many kilocalorie fit in one joule.
write a number and we convert instantly
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- scroll: formula · table · questions -

  • 1 J = 0.000239 kcal
  • 1 kcal = 4184 J

Example: joule to kilocalorie

  • 1 joule = 0.000239 kilocalorie

Joule to kilocalorie conversion table

joule kilocalorie
1 0.000239
2 0.000478
5 0.001195
10 0.00239
20 0.00478
50 0.01195
100 0.023901

Joule to kilocalorie formula

To convert joule to kilocalorie, divide by 4184.

1 J = 0.000239 kcal
Example: 1 joule = 0.000239 kilocalorie

Common energy conversion mistakes

  • Food 'calories' are actually kilocalories: 1 kcal = 1,000 cal. A '500-calorie' meal therefore contains 500 kcal, half a million small calories. Labels write the same thing as 'kcal' or as 'Cal' with a capital C.

Quick joule and kilocalorie conversion quiz

Score: 0

2 kilocalorie equals 8 370 joule.

Correct answer: 2 kilocalorie = 8 370 joule.

100 joule equals 0.00478 kilocalorie.

Correct answer: 100 joule = 0.0239 kilocalorie.

2 joule equals 0.00239 kilocalorie.

Correct answer: 2 joule = 0.000478 kilocalorie.

More energy conversions