Joules to Calories (J to cal) Converter
1 calorie (thermochemical) = 4.184 joules. Note: Food "Calories" (kcal) = 4,184 joules.
Formula:1 cal = 4.184 J
⇄ Switch to Calories To JoulesJoule to Calorie — common values
1 J0.239006 cal
100 J23.900574 cal
1,000 J239.00574 cal
3,600 J860.42065 cal
10,000 J2,390.0574 cal
1,000,000 J239,005.7361 cal
3,600,000 J860,420.6501 cal
How to convert Joules To Calories
To convert joules to calories, use the formula: 1 cal = 4.184 J. Enter any value in the input field above and the result appears instantly. Click the ⇄ button or use the “Switch to Calories To Joules” link to reverse the conversion.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000) and are accurate to 8 significant figures.
Frequently Asked Questions
What is the formula to convert Joules To Calories?
1 cal = 4.184 J. 1 calorie (thermochemical) = 4.184 joules. Note: Food "Calories" (kcal) = 4,184 joules.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert Calories To Joules?
Use the Calories To Joules converter or click the ⇄ switch button above.
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