How many gigajoule in 1 kilojoules?
The answer is 1.0E-6.

We assume you are converting between **gigajoule** and **kilojoule**.

You can view more details on each measurement unit:

gigajoule or
kilojoules

The SI derived unit for **energy** is the joule.

1 joule is equal to 1.0E-9 gigajoule, or 0.001 kilojoules.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between gigajoules and kilojoules.

Type in your own numbers in the form to convert the units!

1 gigajoule to kilojoules = 1000000 kilojoules

2 gigajoule to kilojoules = 2000000 kilojoules

3 gigajoule to kilojoules = 3000000 kilojoules

4 gigajoule to kilojoules = 4000000 kilojoules

5 gigajoule to kilojoules = 5000000 kilojoules

6 gigajoule to kilojoules = 6000000 kilojoules

7 gigajoule to kilojoules = 7000000 kilojoules

8 gigajoule to kilojoules = 8000000 kilojoules

9 gigajoule to kilojoules = 9000000 kilojoules

10 gigajoule to kilojoules = 10000000 kilojoules

You can do the reverse unit conversion from kilojoules to gigajoule, or enter any two units below:

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The SI prefix "giga" represents a factor of
10^{9}, or in exponential notation, 1E9.

So 1 gigajoule = 10^{9} 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).

The SI prefix "kilo" represents a factor of
10^{3}, or in exponential notation, 1E3.

So 1 kilojoule = 10^{3} 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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