## ››Convert zeptojoule to hectojoule

 zeptojoule hectojoule

How many zeptojoule in 1 hectojoule? The answer is 1.0E+23.
We assume you are converting between zeptojoule and hectojoule.
You can view more details on each measurement unit:
zeptojoule or hectojoule
The SI derived unit for energy is the joule.
1 joule is equal to 1.0E+21 zeptojoule, or 0.01 hectojoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between zeptojoules and hectojoules.
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## ››Definition: Zeptojoule

The SI prefix "zepto" represents a factor of 10-21, or in exponential notation, 1E-21.

So 1 zeptojoule = 10-21 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: Hectojoule

The SI prefix "hecto" represents a factor of 102, or in exponential notation, 1E2.

So 1 hectojoule = 102 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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