There are
2,089 mi
from Redwood City, CA to Arnold, MO
That's the driving distance. It would take 1 day 12 hours to go from Redwood City, California to Arnold, Missouri.
The flight distance (direct flight from Redwood City, CA to Arnold, MO) is 1,728.11 mi.
2,089 mi = 3,361.78 kms