Calories (15 °C, CIPM, 1950) conversion

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Calories (15°C,CIPM, 1950)


  • cal15

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  • As part of the metric system but not an SI unit, calories still have widespread use but are being superceded by the Joule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 International Committee for Weights and Measures have defined one cal15 is the ammount of heat energy needed to raise the temperature of 1g of water from 14.5°C to 15.5°C


The calorie was first defined in 1824 by Nicolas Clément as a unit of heat. It is a metric unit who's use has been superceeded in the SI units by the Joule

Usage context:

The calorie is widely used for measurements in chemistry


  • There are 1,000 gram calories in a Kilgram Calorie