Miles between San Marcos, CA and Barstow, CA

There are
145 mi
from San Marcos, CA to Barstow, CA

That's the driving distance. It would take 2 hours 46 mins to go from San Marcos, California to Barstow, California.

The flight distance (direct flight from San Marcos, CA to Barstow, CA) is 121.38 mi.

145 mi = 234.11 kms