How many kilowatt-hour in 1 gigajoule?
The answer is 277.77777777778.
We assume you are converting between kilowatt hour and gigajoule.
You can view more details on each measurement unit: kilowatt-hour or
gigajoule
The SI derived unit for energy is the joule.
1 joule is equal to 2.7777777777778E-7 kilowatt-hour, or 1.0E-9 gigajoule.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between kilowatt hours and gigajoules.
Type in your own numbers in the form to convert the units!

››Quick conversion chart of kilowatt-hour to gigajoule

The SI prefix "giga" represents a factor of
10^{9}, or in exponential notation, 1E9.

So 1 gigajoule = 10^{9} 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!