Femtowatt-hours to petawatt-hours equation
To convert femtowatt-hours to petawatt-hours:
Multiply the number of femtowatt-hours by 1e-30
About femtowatt-hours
One femtowatt-hour is equal to a quadrillionth watt-hours
About petawatt-hours
One petawatt-hour is equal to a quadrillion watt-hours