There are
2,354 mi
from Redwood City, CA to Celina, OH
That's the driving distance. It would take 1 day 17 hours to go from Redwood City, California to Celina, Ohio.
The flight distance (direct flight from Redwood City, CA to Celina, OH) is 2,017.63 mi.
2,354 mi = 3,788.93 kms