## ››Convert kilojoule to attojoule

 kilojoules attojoule

How many kilojoules in 1 attojoule? The answer is 1.0E-21.
We assume you are converting between kilojoule and attojoule.
You can view more details on each measurement unit:
kilojoules or attojoule
The SI derived unit for energy is the joule.
1 joule is equal to 0.001 kilojoules, or 1.0E+18 attojoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between kilojoules and attojoules.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of kilojoules to attojoule

1 kilojoules to attojoule = 1.0E+21 attojoule

2 kilojoules to attojoule = 2.0E+21 attojoule

3 kilojoules to attojoule = 3.0E+21 attojoule

4 kilojoules to attojoule = 4.0E+21 attojoule

5 kilojoules to attojoule = 5.0E+21 attojoule

6 kilojoules to attojoule = 6.0E+21 attojoule

7 kilojoules to attojoule = 7.0E+21 attojoule

8 kilojoules to attojoule = 8.0E+21 attojoule

9 kilojoules to attojoule = 9.0E+21 attojoule

10 kilojoules to attojoule = 1.0E+22 attojoule

## ››Want other units?

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

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## ››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).

## ››Definition: Attojoule

The SI prefix "atto" represents a factor of 10-18, or in exponential notation, 1E-18.

So 1 attojoule = 10-18 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).

## ››Metric conversions and more

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!