There are
2,443 mi
from Redwood City, CA to Richmond, KY
That's the driving distance. It would take 1 day 18 hours to go from Redwood City, California to Richmond, Kentucky.
The flight distance (direct flight from Redwood City, CA to Richmond, KY) is 2,062.09 mi.
2,443 mi = 3,932.04 kms