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Convert joule to calorie

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

  • 1 J = 0.239006 cal
  • 1 cal = 4.184 J

Example: joule to calorie

  • 1 joule = 0.239006 calorie

Joule to calorie conversion table

joule calorie
1 0.239006
2 0.478011
5 1.195029
10 2.390057
20 4.780115
50 11.950287
100 23.900574

Joule to calorie formula

To convert joule to calorie, multiply by 0.239006.

1 J = 0.239006 cal
Example: 1 joule = 0.239006 calorie

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 calorie conversion quiz

Score: 0

213 joule equals 58.5 calorie.

Correct answer: 213 joule = 50.9 calorie.

4.8 joule equals 1.15 calorie.

Correct answer: 4.8 joule = 1.15 calorie.

40 joule equals 9.56 calorie.

Correct answer: 40 joule = 9.56 calorie.

0.6 joule equals 0.129 calorie.

Correct answer: 0.6 joule = 0.143 calorie.

154 joule equals 36.8 calorie.

Correct answer: 154 joule = 36.8 calorie.

More energy conversions