## Convert petajoule to zettawatthour

 petajoule zettawatthour

How many petajoule in 1 zettawatthour? The answer is 3600000000. We assume you are converting between petajoule and zettawatthour. You can view more details on each measurement unit: petajoule or zettawatthour The SI derived unit for energy is the joule. 1 joule is equal to 1.0E-15 petajoule, or 2.7777777777778E-25 zettawatthour. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between petajoules and zettawatthour. Type in your own numbers in the form to convert the units!

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## Definition: Petajoule

The SI prefix "peta" represents a factor of 1015, or in exponential notation, 1E15.

So 1 petajoule = 1015 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: Zettawatthour

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

So 1 zettawatthour = 1021 .

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