Dictionary » K » Kilocalorie



noun, plural: kilocalories

A measure of heat energy that is equal to the amount of heat needed to raise the temperature of one kilogram of water by one degree Centigrade at one atmospheric pressure.


It is used in measurements of the heat production of chemical reactions, including those involved in biology.

Abbreviation: Cal or cal, kcal


Compare: Joule

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Re: Food to ATP energy?

... and Calorie (with a capital "C"). a lowercase "C" indicates a true calorie, and an upper case "C" represents a kilocalorie. We use the upper case "C" when talking about foods and the lower case "c" when talking about metabolism. Your 8000 ...

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by tmbirkhead
Thu Aug 14, 2014 1:11 am
Forum: Cell Biology
Topic: Food to ATP energy?
Replies: 2
Views: 5966

Burning foods

But a food Calorie is an energy kilocalorie - or is that not true everywhere?

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by Darby
Fri Feb 09, 2007 11:28 pm
Forum: General Discussion
Topic: Burning foods
Replies: 13
Views: 5782

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