## ››Convert attojoule to yottajoule

 attojoule yottajoule

How many attojoule in 1 yottajoule? The answer is 1.0E+42.
We assume you are converting between attojoule and yottajoule.
You can view more details on each measurement unit:
attojoule or yottajoule
The SI derived unit for energy is the joule.
1 joule is equal to 1.0E+18 attojoule, or 1.0E-24 yottajoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between attojoules and yottajoules.
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## ››Definition: Attojoule

The SI prefix "atto" represents a factor of 10-18, or in exponential notation, 1E-18.

So 1 attojoule = 10-18 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: Yottajoule

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

So 1 yottajoule = 1024 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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