ncal(nanocalorie)

A nanocalorie (ncal) is a unit of energy in the field of energy measurements. It is a submultiple of the calorie, which is a unit commonly used to quantify energy, particularly in the context of food, nutrition, and heat transfer. The prefix "nano" denotes that it is one-billionth (10⁻⁹) of a calorie. Therefore, one nanocalorie is equivalent to 0.000000001 (10⁻⁹) calories. In the International System of Units (SI), the energy is usually measured in joules; thus, 1 nanocalorie is approximately equal to 4.184 picojoules (pJ). Nanocalories are generally used when dealing with very small amounts of energies, such as in microscopic or nano-level energy exchanges.

dcal [IT](decicalorie)

A decicalorie (dcal) is a unit of energy commonly used in the field of food and nutrition. It is derived from the calorie, where 1 decicalorie is equal to one-tenth of a calorie. In the International System of Units (SI), the basic unit of energy is the joule, and 1 decicalorie is approximately equivalent to 4.184 joules. Decicalories are used to measure the energy content of food items or describe the amount of energy expended by the body through various activities. It provides a way to quantify and compare the energy intake and expenditure, which is essential in maintaining a healthy diet and weight.