megajoule

unit of energy measurement

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July 16, 2026

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A megajoule is a unit of energy measurement. The base unit for energy is the joule, named after physicist James Prescott Joule. One joule is equivalent to the work done by a force of one newton acting over a distance of one meter. A megajoule represents one million joules. Energy can exist in various forms, including kinetic, potential, thermal, electrical, chemical, and nuclear energy. Energy is conserved, meaning it can be transformed from one form to another but never created or destroyed. For context, a 2-kilogram mass moving at one meter per second has a kinetic energy of one joule.1234

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human nutrition
Calories and kilocalories: energy supply
…kilojoule = 10³ joules) or megajoules (1 megajoule = 10⁶ joules). One kilocalorie is equivalent to 4.184 kilojoules.
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…kilojoule = 10³ joules) or megajoules (1 megajoule = 10⁶ joules). One kilocalorie is equivalent to 4.184 kilojoules.
Read More