Miles between Sunnyvale, CA and Foster City, CA

There are
21 mi
from Sunnyvale, CA to Foster City, CA

That's the driving distance. It would take 29 minutes to go from Sunnyvale, California to Foster City, California.

The flight distance (direct flight from Sunnyvale, CA to Foster City, CA) is 18.38 mi.

21 mi = 34.54 kms