How many kilojoules in 1 petajoule?
The answer is 1000000000000.
We assume you are converting between kilojoule and petajoule.
You can view more details on each measurement unit: kilojoules or
petajoule
The SI derived unit for energy is the joule.
1 joule is equal to 0.001 kilojoules, or 1.0E-15 petajoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between kilojoules and petajoules.
Type in your own numbers in the form to convert the units!

››Want other units?

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

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).

››Definition: Petajoule

The SI prefix "peta" represents a factor of
10^{15}, or in exponential notation, 1E15.

So 1 petajoule = 10^{15} 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!