Kilocalorie is largest.
1 kilocalorie = 1000 calories = 4,200 Joules = 3.98 BTU
The international unit for energy is the joule. Specifically for food, an old-fashioned unit, the kilocalorie (often just written Calorie, with an uppercase "C"), is often used instead. One kilocalorie is about 4200 joules.
The recommended unit for any type of energy is, of course, the joule. The older unit, calorie, is still often used for food. If spelled with a capital "C", "Calorie", it usually means a kilocalorie.
A calorie is greater - it is equal to about 4.2 joules.
The recommended unit to use for any type of energy is the joule. That way, no conversion factors are required, when converting from one type of energy to another. In practice, the calorie or kilocalorie is still sometimes used for food.
Joule
its 4
1 kilocalorie = 4186.8 joule = 0.0041868 megajoule (rounded) 1 megajoule = 238.85 kilocalorie (rounded)
The international unit for energy is the joule. Specifically for food, an old-fashioned unit, the kilocalorie (often just written Calorie, with an uppercase "C"), is often used instead. One kilocalorie is about 4200 joules.
A calorie is the unit of energy required to raise one gram of water 1 degree Celsius. A kilocalorie, or Calorie, is the equivalent of 1000 calories.
The recommended unit for any type of energy is, of course, the joule. The older unit, calorie, is still often used for food. If spelled with a capital "C", "Calorie", it usually means a kilocalorie.
The Calorie.
A calorie is greater - it is equal to about 4.2 joules.
The recommended unit to use for any type of energy is the joule. That way, no conversion factors are required, when converting from one type of energy to another. In practice, the calorie or kilocalorie is still sometimes used for food.
A joule, a Calorie...
Joule
No, the calorie is an older unit. The SI unit is the Joule.
As far as I know, they are the same thing. Either that or a calorie is infinitesimal. Kilocalories are what most refer to simply as calories (the calories listed on food labels.)AnswerThe clue is in the prefix, 'kilo'. A kilocalorie (kcal) is one-thousand calories (cal). The problem is that people in the food industry are either simply too lazy or too stupid to use the work 'kilocalorie'.As the calorie is an obsolete unit, they should be using the joule.