Convert megajoules to kilojoules -
Conversion of Measurement Units

›› Convert megajoule to kilojoule

›› More information from the unit converter

How many megajoules in 1 kilojoules? The answer is 0.001.
We assume you are converting between megajoule and kilojoule.
You can view more details on each measurement unit:
megajoules or kilojoules
The SI derived unit for energy is the joule.
1 joule is equal to 1.0E-6 megajoules, or 0.001 kilojoules.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between megajoules and kilojoules.
Type in your own numbers in the form to convert the units!

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›› Definition: Megajoule

The SI prefix "mega" represents a factor of 10⁶, or in scientific notation, 1E6.

So 1 megajoule = 10⁶ 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: Kilojoule

The SI prefix "kilo" represents a factor of 10³, or in scientific notation, 1E3.

So 1 kilojoule = 10³ 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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