There are
2,031 mi
from Redwood City, CA to Troy, MO
That's the driving distance. It would take 1 day 11 hours to go from Redwood City, California to Troy, Missouri.
The flight distance (direct flight from Redwood City, CA to Troy, MO) is 1,691.15 mi.
2,031 mi = 3,268.31 kms