Joule to Calorie
Convert Joule to Calorie instantly. Free online engineering unit converter with exact formula, conversion table and FAQ.
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Formula
cal = J × 0.239006
J = cal × 4.184
Conversion table
| 1 J | 0.239006 cal |
| 5 J | 1.19503 cal |
| 10 J | 2.39006 cal |
| 20 J | 4.78011 cal |
| 50 J | 11.9503 cal |
| 100 J | 23.9006 cal |
| 500 J | 119.503 cal |
| 1000 J | 239.006 cal |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the Joule (J). The joule is the SI derived unit of energy.
What is the destination unit in this conversion?
The destination unit is the Calorie (cal). A thermochemical calorie is 4.184 joules.
How do I convert Joule to Calorie?
Multiply the Joule value by 0.239006. For example, 10 J × 0.239006 = 2.39006 cal.
Is the Joule to Calorie conversion exact?
Yes. Both units belong to the same engineering measurement family (energy), so the ratio between them is a fixed, defined value rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in Joule needs to be compared with, or reported in, Calorie, such as in engineering, scientific, or industrial calculations.
Can I convert Calorie back to Joule?
Yes. Multiply the Calorie value by 4.184 to get Joule.
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About this conversion
This page converts Joule (J) to Calorie (cal) within the engineering converter.
The joule is the SI derived unit of energy. A thermochemical calorie is 4.184 joules.
The formula is cal = J × 0.239006, based on each unit's fixed relationship to the energy base unit.
The conversion is exact, since it relies on a fixed numerical ratio between the two units rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common Joule values already converted to Calorie.