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.

dJ(decijoule)

A decijoule (dJ) is a unit of energy in the International System of Units (SI) with the symbol "dJ". It is a submultiple of the standard SI unit for energy, the joule (J). In the field of energy, one decijoule is equal to one-tenth (1/10) of a joule, or 0.1 joules.

This unit is used to quantify or measure small amounts of energy in various applications like electrical, mechanical, thermal or chemical processes. It is not as commonly used as other multiple or submultiple units like kilojoules, megajoules or millijoules, but it can still be helpful for expressing specific energy values in smaller scales.