small calorie
Sign in to saveThe calorie is a unit of energy that originated from the caloric theory of heat. The small calorie or gram calorie is defined as the amount of heat needed to raise the temperature of one milliliter of water by one degree Celsius (or one kelvin). In the US, "large calorie" is also used to mean kilocalorie (1 kcal = 1000 cal) .
AI overview
A small calorie (also called a gram calorie) is a unit of energy defined as the amount of heat needed to raise the temperature of one milliliter of water by one degree Celsius. It matters because it's a standardized way to measure energy, though in the US the term "calorie" in everyday contexts often refers to the larger kilocalorie (1,000 small calories), which can create confusion.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Unit.name
- Calorie
- Unit.image
- FDA Nutrition Facts Label 2016.png
- Unit.caption
- A nutrition facts label highlighting the number of calories per typical serving
- Unit.quantity
- energy
- Unit.symbol
- cal
- Unit.units1
- SI units
- Unit.inunits1
- 4.184 J
via Wikipedia infobox
Article
8 sectionsContents
- History
- Definitions
- Usage
- Nutrition
- Food energy
- Chemistry and physics
- See also
- References
The calorie is a unit of energy that originated from the caloric theory of heat. The small calorie or gram calorie is defined as the amount of heat needed to raise the temperature of one milliliter of water by one degree Celsius (or one kelvin). In the US, "large calorie" is also used to mean kilocalorie (1 kcal = 1000 cal) .
In nutrition and food science, the term calorie and the symbol cal may refer to the large unit or to the small unit in different regions of the world. It is generally used in publications and package labels to express the energy value of foods in per serving or per weight, recommended dietary caloric intake, metabolic rates, etc. Some authors recommend the spelling Calorie and the symbol Cal (both with a capital C) if the large calorie is meant, to avoid confusion; however, this convention is often ignored.