## ››Convert zettajoule to yottawatthour

 zettajoule yottawatthour

How many zettajoule in 1 yottawatthour? The answer is 3600000.
We assume you are converting between zettajoule and yottawatthour.
You can view more details on each measurement unit:
zettajoule or yottawatthour
The SI derived unit for energy is the joule.
1 joule is equal to 1.0E-21 zettajoule, or 2.7777777777778E-28 yottawatthour.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between zettajoules and yottawatthour.
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## ››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).

## ››Definition: Yottawatthour

The SI prefix "yotta" represents a factor of 1024, or in exponential notation, 1E24.

So 1 yottawatthour = 1024 .

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