Petawatt-hours to femtowatt-hours equation
To convert petawatt-hours to femtowatt-hours:
Multiply the number of petawatt-hours by 9.999999999999999e+29
About petawatt-hours
One petawatt-hour is equal to a quadrillion watt-hours
About femtowatt-hours
One femtowatt-hour is equal to a quadrillionth watt-hours