There are
2,541 mi
from Youngstown, OH to Redwood City, CA
That's the driving distance. It would take 1 day 20 hours to go from Youngstown, Ohio to Redwood City, California.
The flight distance (direct flight from Youngstown, OH to Redwood City, CA) is 2,216.59 mi.
2,541 mi = 3.22 kms