## ››Convert attojoule to microjoule

 attojoule microjoule

How many attojoule in 1 microjoule? The answer is 1000000000000.
We assume you are converting between attojoule and microjoule.
You can view more details on each measurement unit:
attojoule or microjoule
The SI derived unit for energy is the joule.
1 joule is equal to 1.0E+18 attojoule, or 1000000 microjoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between attojoules and microjoules.
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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: Microjoule

The SI prefix "micro" represents a factor of 10-6, or in exponential notation, 1E-6.

So 1 microjoule = 10-6 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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