There are
2,386 mi
from Hamilton, OH to Rohnert Park, CA
That's the driving distance. It would take 1 day 17 hours to go from Hamilton, Ohio to Rohnert Park, California.
The flight distance (direct flight from Hamilton, OH to Rohnert Park, CA) is 2,037.64 mi.
2,386 mi = 3,840.01 kms