Nanowatt-hours to terawatt-hours equation
To convert nanowatt-hours to terawatt-hours:
Multiply the number of nanowatt-hours by 1.0000000000000001e-21
About nanowatt-hours
One nanowatt-hour is equal to a billionth watt-hours
About terawatt-hours
One terawatt-hour is equal to a trillion watt-hours