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calorie: Cal (Calorie) Cal 1.0 Cal (4.2 kJ) megacalorie: Mcal Mcal 1.0 Mcal (4.2 MJ) kilocalorie: kcal kcal 1.0 kcal (4.2 kJ) calorie: cal cal 1.0 cal (4.2 J) millicalorie ...
The precise equivalence between calories and joules has varied over the years, but in thermochemistry and nutrition it is now generally assumed that one (small) calorie (thermochemical calorie) is equal to exactly 4.184 J, and therefore one kilocalorie (one large calorie) is 4184 J or 4.184 kJ.
Calorie multiples: calorie: Cal Cal The thermo-chemical calorie is the default definition. For others, see the full list. 1.0 Cal (4.2 kJ) megacalorie: Mcal Mcal 1.0 Mcal (4.2 MJ) kilocalorie: kcal kcal 1.0 kcal (4.2 kJ) calorie: cal cal 1.0 cal (4.2 J) millicalorie: mcal mcal 1.0 mcal (4.2 mJ) pound/ ounce-foot/ inch-hour-minute-second: foot ...
The conversion procedure for some units (for example, the Mach unit of speed) are built into Module:Convert as they are too complex to be specified in a table. That is indicated by entering a code (which must be the same as used in the module) in the Extra column.
the small calorie (gram-calorie, cal) is 4.184 J exactly. It was originally defined so that the specific heat capacity of liquid water would be 1 cal/(°C⋅g). The grand calorie (kilocalorie, kilogram-calorie, food calorie, kcal, Cal) is 1000 small calories, 4184 J exactly. It was defined so that the specific heat capacity of water would be 1 ...
Energy; system unit code (alternative) symbol or abbrev. notes sample default conversion combinations SI: yottajoule: YJ YJ 1.0 YJ (2.8 × 10 17 kWh) zettajoule: ZJ ZJ 1.0 ZJ (2.8 × 10 14 kWh)
Calorie multiples: calorie: Cal Cal The thermo-chemical calorie is the default definition. For others, see the full list. 1.0 Cal (4.2 kJ) megacalorie: Mcal Mcal 1.0 Mcal (4.2 MJ) kilocalorie: kcal kcal 1.0 kcal (4.2 kJ) calorie: cal cal 1.0 cal (4.2 J) millicalorie: mcal mcal 1.0 mcal (4.2 mJ) pound/ ounce-foot/ inch-hour-minute-second: foot ...
The calorie is defined as the amount of thermal energy necessary to raise the temperature of one gram of water by 1 Celsius degree, from a temperature of 14.5 °C, at a pressure of 1 atm. For thermochemistry a calorie of 4.184 J is used, but other calories have also been defined, such as the International Steam Table calorie of 4.1868 J.