Erg is a unit of energy or work in the CGS metric system (but not in the SI system). It is defined as the quantity of work done by a force of one dyne applied on a distance of one centimeter and equals 0.1 microjoules. The name of the unit originates from the Greek word ergon which means work. You can convert Ergs to other units here by enter amount of if into green input below. You can also check some basic conversions in Ergs Conversion Table.