There are
2,412 mi
from Kettering, OH to Redwood City, CA
That's the driving distance. It would take 1 day 18 hours to go from Kettering, Ohio to Redwood City, California.
The flight distance (direct flight from Kettering, OH to Redwood City, CA) is 2,046.13 mi.
2,412 mi = 3,880.97 kms