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.

MMBTU [IT](million British thermal units)

MMBTU, or Million British Thermal Units (MM is the Roman numeral for one thousand times one thousand), is a unit of measurement in the field of energy. The British thermal unit (BTU) is a unit of heat used in the Imperial and United States customary systems, where one BTU is roughly equivalent to the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

In the context of energy, the MMBTU is often used to measure the energy content of fuels, such as natural gas, oil, or coal. It represents a quantity of one million BTUs and can be used to compare the energy content of different fuels, or to quantify the amount of heat energy produced by a power plant or industrial process.

The MMBTU is an "IT" or "International Table" BTU unit, which means it's based on the IT calorie and is widely used in the global energy sector. It is important to note that the MMBTU can be converted to other energy units, such as kilowatt-hours, joules, or calories, depending on the intended application or standard used in a specific industry or region.