Zettawatt-hours to gigawatt-hours equation
To convert zettawatt-hours to gigawatt-hours:
Multiply the number of zettawatt-hours by 1000000000000
About zettawatt-hours
One zettawatt-hour is equal to a sextillion watt-hours
About gigawatt-hours
One gigawatt-hour is equal to a billion watt-hours