How many gigawatt-hour in 1 zettawatthour?
The answer is 1000000000000.
We assume you are converting between gigawatt hour and zettawatthour.
You can view more details on each measurement unit:
gigawatt-hour or zettawatthour
The SI derived unit for energy is the joule.
1 joule is equal to 2.7777777777778E-13 gigawatt-hour, or 2.7777777777778E-25 zettawatthour.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between gigawatt hours and zettawatthour.
Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from zettawatthour to gigawatt-hour, or enter any two units below:
gigawatt-hour to yoctojoule
gigawatt-hour to exajoule
gigawatt-hour to dekatherm
gigawatt-hour to decajoule
gigawatt-hour to joule
gigawatt-hour to gigacalorie
gigawatt-hour to megaelectron volt
gigawatt-hour to watthour
gigawatt-hour to terawatthour
gigawatt-hour to megawatt-hour
The SI prefix "zetta" represents a factor of 1021, or in exponential notation, 1E21.
So 1 zettawatthour = 1021 .
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