## ››Convert erg to zettajoule

 erg zettajoule

How many erg in 1 zettajoule? The answer is 1.0E+28.
We assume you are converting between erg and zettajoule.
You can view more details on each measurement unit:
erg or zettajoule
The SI derived unit for energy is the joule.
1 joule is equal to 10000000 erg, or 1.0E-21 zettajoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between ergs and zettajoules.
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## ››Definition: Erg

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 word meaning "work".

## ››Definition: Zettajoule

The SI prefix "zetta" represents a factor of 1021, or in exponential notation, 1E21.

So 1 zettajoule = 1021 joules.

The definition of a joule is as follows:

The joule (symbol J, also called newton meter, watt second, or coulomb volt) is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honor of the physicist James Prescott Joule (1818-1889).

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