## Convert gigajoule to gigawatt hour

 gigajoule gigawatt-hour

How many gigajoule in 1 gigawatt-hour? The answer is 3600. We assume you are converting between gigajoule and gigawatt hour. You can view more details on each measurement unit: gigajoule or gigawatt-hour The SI derived unit for energy is the joule. 1 joule is equal to 1.0E-9 gigajoule, or 2.7777777777778E-13 gigawatt-hour. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between gigajoules and gigawatt hours. Type in your own numbers in the form to convert the units!

## Want other units?

You can do the reverse unit conversion from gigawatt-hour to gigajoule, or enter any two units below:

## Enter two units to convert

 From: To:

## Definition: Gigajoule

The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.

So 1 gigajoule = 109 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, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!