Gigawatt-hours to femtowatt-hours equation
To convert gigawatt-hours to femtowatt-hours:
Multiply the number of gigawatt-hours by 9.999999999999998e+23
About gigawatt-hours
One gigawatt-hour is equal to a billion watt-hours
About femtowatt-hours
One femtowatt-hour is equal to a quadrillionth watt-hours