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Convert joule to calorie

Here you can quickly calculate how many calorie fit in one joule.

- scroll: formula · table · questions -

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

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

109 joule equals 23.4 calorie.

Correct answer: 109 joule = 26.1 calorie.

154 joule equals 36.8 calorie.

Correct answer: 154 joule = 36.8 calorie.

3.2 joule equals 0.765 calorie.

Correct answer: 3.2 joule = 0.765 calorie.

49 calorie equals 185 joule.

Correct answer: 49 calorie = 205 joule.

7.3 calorie equals 30.5 joule.

Correct answer: 7.3 calorie = 30.5 joule.

More energy conversions