Convert erg to j
Erg
The erg is a unit of energy in the centimetre–gram–second (CGS) system of units, equal to 10−7 joules. Its name is derived from the Greek word ergon, meaning "work." The erg was widely used in physics before the adoption of the SI system and is still encountered in fields such as astrophysics, where it remains convenient for expressing very small quantities of energy.
Joule
The joule (/dʒaʊ,dʒuːljawl, jool; symbol: J) is a derived unit of energy in the International System of Units. It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's motion through a distance of one metre (1 newton metre or N⋅m). It is also the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second. It is named after the English physicist James Prescott Joule (1818–1889).