›› Measurement unit: calorie

Full name: calorie [15 °C]

Plural form: calories

Symbol: cal

Category type: energy

Scale factor: 4.1858


›› Similar units

calorie [15 °C]
calorie [I.T.]
calorie [nutritional]
calorie [thermochemical]
calorie [burned]


›› SI unit: joule

The SI derived unit for energy is the joule.
1 joule is equal to 0.23890295761862 calorie.


›› Convert calorie to another unit

Convert calorie to  

Valid units must be of the energy type.
You can use this form to select from known units:

Convert calorie to  


›› Definition: Calorie

15 °C calorie: the amount of energy required to warm 1 g of air-free water from 14.5 °C to 15.5 °C at a constant pressure of 101.325 kPa (1 atm). Experimental values of this calorie ranged from 4.1852 J to 4.1858 J. The CIPM in 1950 published a mean experimental value of 4.1855 J, noting an uncertainty of 0.0005 J.


›› Sample conversions: calorie

calorie to tonne of coal equivalent
calorie to gallon [U.S.] of diesel oil
calorie to kilowatt hour
calorie to zettajoule
calorie to myriawatt hour
calorie to dekawatt hour
calorie to foot-pound force
calorie to cheval vapeur heure
calorie to petajoule
calorie to gallon [UK] of kerosene