## ››Convert wattsecond to petajoule

 wattsecond petajoule

## ››More information from the unit converter

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

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