There are
2,101 mi
from Naperville, IL to Rohnert Park, CA
That's the driving distance. It would take 1 day 12 hours to go from Naperville, Illinois to Rohnert Park, California.
The flight distance (direct flight from Naperville, IL to Rohnert Park, CA) is 1,830.19 mi.
2,101 mi = 3.22 kms