The Calorie.
Kilocalorie is largest. 1 kilocalorie = 1000 calories = 4,200 Joules = 3.98 BTU
A joule, a Calorie...
BTU/calorie/joule .
In 1 joule there is 0.238902957619 calories of heat. A joule is the measurement of work, energy or the amount of heat in the International System of Units.
The SI unit for heat is the joule (J). Additionally, the calorie (cal) is a commonly used non-SI unit for heat, where 1 calorie is equivalent to 4.184 joules.
One common unit for heat or energy is the calorie (cal), which is defined as the amount of heat required to raise the temperature of 1 gram of water by 1 degree Celsius. Another unit commonly used is the joule (J), where 1 calorie is approximately equal to 4.184 joules.
The most common units of heat are the Calorie, Joule and BTU (British thermal unit) heat is a form of energy.
Calorie is the unit of heat energy in cgs system. One calorie is the heat energy required to raise the temperature of one gram of water through one degree Celsius. But in MKSA system of units, joule is used as the unit of heat energy. One calorie is equal to 4.180 joule. Calorie is usually used in bio chemical changes.
Joule, calorie, BTU (British Thermal Unit)
One calorie of heat is equivalent to one kilocalorie (kcal) in nutrition. This means that when we talk about calories in food, we are actually referring to kilocalories, where 1 kcal is equal to 1000 calories of heat energy.
SI units for specific heat capacity is joule per kilogram kelvin (J/kg,K).
The calorie is used for heat, 1 calorie heats 1 gram of water by 1 degC. The Joule is used for mechanical energy, but there is a fixed relation, 1 calorie = 4.2 Joules