What is the difference between calories and Kcal?
A calorie is a unit by which energy is measured. These units of energy are so small that a single food item will have tens of thousands of them. Therefore, to ease calculations, they are expressed in 1000-calorie units known as kilocalories (kcalories / kcal / *Calorie / *Cal). 1 kilocalorie (kcal) is equivalent to 1000-calorie units (*a capitalised version is sometimes used depending on which country the product or information is from). However, confusion may arise when you speak of energy from foods. You would say ‘calories’ although the actual measure is kilocalories. If an apple provides 150 kcal (150 000 calorie-units), it is commonly said that an apple provides 150 ‘calories’.