There are
2,347 mi
from San Mateo, CA to Celina, OH
That's the driving distance. It would take 1 day 17 hours to go from San Mateo, California to Celina, Ohio.
The flight distance (direct flight from San Mateo, CA to Celina, OH) is 2,020.68 mi.
2,347 mi = 3.22 kms