# ››Convert gigajoule to picojoule

 gigajoule pJ

 Did you mean to convert gigajoule to petajoule picojoule

How many gigajoule in 1 pJ? The answer is 1.0E-21.
We assume you are converting between gigajoule and picojoule.
You can view more details on each measurement unit:
gigajoule or pJ
The SI derived unit for energy is the joule.
1 joule is equal to 1.0E-9 gigajoule, or 1000000000000 pJ.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between gigajoules and picojoules.
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# ››Definition: Gigajoule

The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.

So 1 gigajoule = 109 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: Picojoule

The SI prefix "pico" represents a factor of 10-12, or in exponential notation, 1E-12.

So 1 picojoule = 10-12 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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