kcal to Joules Converter
1 kcal (food Calorie) = 4,184 joules. Used in nutrition, dietetics and exercise science.
Formula:1 kcal = 4,184 J
⇄ Switch to Joules To KcalKilocalorie to Joule — common values
1 kcal4,184 J
100 kcal418,400 J
1,000 kcal4,184,000 J
3,600 kcal15,062,400 J
10,000 kcal41,840,000 J
1,000,000 kcal4,184,000,000 J
3,600,000 kcal15,062,400,000 J
How to convert Kcal To Joules
To convert kcal to joules, use the formula: 1 kcal = 4,184 J. Enter any value in the input field above and the result appears instantly. Click the ⇄ button or use the “Switch to Joules To Kcal” 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 Kcal To Joules?
1 kcal = 4,184 J. 1 kcal (food Calorie) = 4,184 joules. Used in nutrition, dietetics and exercise science.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert Joules To Kcal?
Use the Joules To Kcal converter or click the ⇄ switch button above.
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