Calories (mean) conversion

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Calories (mean)


  • Calorie (mean)
  • Cal

Unit of:

  • Energy and power

Worldwide use:

  • As part of the metric system but not an SI unit, calories still have widespread use but are being superceded by the Joule


The mean calorie is the total amount of energy needed to heat one gram of air-free water from 0 to 100°C at standard atmospheric pressure, divided by 100.It's value is 4.19002 J


The calorie was first defined in 1824 by Nicolas Clément as a unit of heat. Its a metric unit, but its use has been superceeded in the SI units by the Joule

Component units:

  • The kilogram calorie can be split into 1,000 calories