## ››Convert gigajoule to millijoule

 gigajoule millijoule

How many gigajoule in 1 millijoule? The answer is 1.0E-12.
We assume you are converting between gigajoule and millijoule.
You can view more details on each measurement unit:
gigajoule or millijoule
The SI derived unit for energy is the joule.
1 joule is equal to 1.0E-9 gigajoule, or 1000 millijoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between gigajoules and millijoules.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of gigajoule to millijoule

1 gigajoule to millijoule = 1000000000000 millijoule

2 gigajoule to millijoule = 2000000000000 millijoule

3 gigajoule to millijoule = 3000000000000 millijoule

4 gigajoule to millijoule = 4000000000000 millijoule

5 gigajoule to millijoule = 5000000000000 millijoule

6 gigajoule to millijoule = 6000000000000 millijoule

7 gigajoule to millijoule = 7000000000000 millijoule

8 gigajoule to millijoule = 8000000000000 millijoule

9 gigajoule to millijoule = 9000000000000 millijoule

10 gigajoule to millijoule = 10000000000000 millijoule

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

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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: Millijoule

The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.

So 1 millijoule = 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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ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!