Miles between San Marcos, CA and Mill Valley, CA

There are
493 mi
from San Marcos, CA to Mill Valley, CA

That's the driving distance. It would take 9 hours 20 mins to go from San Marcos, California to Mill Valley, California.

The flight distance (direct flight from San Marcos, CA to Mill Valley, CA) is 446.79 mi.

493 mi = 793.47 kms