## ››Convert hartree to kilojoule

 hartree kilojoule

How many hartree in 1 kilojoule? The answer is 2.2937104486906E+20.
We assume you are converting between hartree and kilojoule.
You can view more details on each measurement unit:
hartree or kilojoule
The SI derived unit for energy is the joule.
1 joule is equal to 2.2937104486906E+17 hartree, or 0.001 kilojoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between hartrees and kilojoules.
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You can do the reverse unit conversion from kilojoule to hartree, or enter any two units below:

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## ››Definition: Hartree

The Hartree energy (symbol Eh) is a physical constant used as atomic unit of energy, named after physicist Douglas Hartree.

## ››Definition: Kilojoule

The SI prefix "kilo" represents a factor of 103, or in exponential 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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