›› Measurement unit: cal

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]
caliber
calorie [burned]


›› SI unit: joule

The SI derived unit for energy is the joule.
1 joule is equal to 0.238902957619 cal.


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›› 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: cal

cal to Btu [thermochemical]
cal to gallon [U.S.] of automotive gasoline
cal to foot poundal
cal to kiloton [explosive]
cal to wattsecond
cal to yottajoule
cal to quad
cal to dekajoule
cal to megalerg
cal to inch ounce