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Convert joules to calories

Convert joules (J) to calories (cal). 1 J = 0.239006 cal, and 1 cal = 4.184 J.

1 J = 0.239006 cal

Joules to Calories formula

cal = J ÷ 4.184

Divide the number of joules by 4.184.

Example: To convert 1 J to calories: 1 ÷ 4.184 = 0.239006 cal.

Quick answers

What is 1 J in calories?
1 J = 0.239006 cal
What is 1,000 J in calories?
1,000 J = 239.006 cal

Joules to Calories conversion table

Calories to Joules table
joules (J)calories (cal)
1 J0.239006 cal
10 J2.39006 cal
100 J23.9006 cal
1,000 J239.006 cal
4,184 J1,000 cal
10,000 J2,390.06 cal
100,000 J23,900.6 cal
1,000,000 J239,006 cal
3,600,000 J860,421 cal

Frequently asked questions

How many joules are in a calorie?

There are 4.184 joules in a calorie (1 cal = 4.184 J), so 1 J = 0.239006 cal.

How do I convert joules to calories?

Divide the number of joules by 4.184. To convert 1 J to calories: 1 ÷ 4.184 = 0.239006 cal.

Is the Joules to Calories conversion exact?

Yes. Both units are defined exactly, so 1 joule is exactly 0.239005736138 calories. Results on this page are rounded to six significant digits; pick more decimals in the converter if you need them.

What is 1 J in calories?

1 J = 0.239006 cal.

How do I convert calories back to joules?

Use the reverse relationship: 1 cal = 4.184 J. The Calories to Joules page has a converter and a full table.

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