- published: 02 Sep 2015
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An erg is the unit of energy and mechanical work in the centimetre-gram-second (CGS) system of units, symbol "erg". Its name is derived from the Greek ergon, meaning "work".
An erg is the amount of work done by a force of one dyne exerted for a distance of one centimeter. In the CGS base units, it is equal to one gram centimeter-squared per second-squared (g·cm2/s2). It is thus equal to 10−7joules or 100 nanojoules (nJ) in SI units.
1 erg = 624.15 GeV = 6.2415 ×1011eV
1 erg = 1 dyne cm = 1 g·cm2/s2