There are
2,385 mi
from San Mateo, CA to Kettering, OH
That's the driving distance. It would take 1 day 17 hours to go from San Mateo, California to Kettering, Ohio.
The flight distance (direct flight from San Mateo, CA to Kettering, OH) is 2,049.37 mi.
2,385 mi = 3.22 kms