There are
2,380 mi
from Dayton, OH to San Anselmo, CA
That's the driving distance. It would take 1 day 17 hours to go from Dayton, Ohio to San Anselmo, California.
The flight distance (direct flight from Dayton, OH to San Anselmo, CA) is 2,052.08 mi.
2,380 mi = 3.22 kms