Miles between Redwood City, CA and Union City, CA

There are
18 mi
from Redwood City, CA to Union City, CA

That's the driving distance. It would take 28 minutes to go from Redwood City, California to Union City, California.

The flight distance (direct flight from Redwood City, CA to Union City, CA) is 12.76 mi.

18 mi = 28.94 kms