Miles between Riverside, CA and San Marcos, TX

There are
1,323 mi
from Riverside, CA to San Marcos, TX

That's the driving distance. It would take 22 hours 42 mins to go from Riverside, California to San Marcos, Texas.

The flight distance (direct flight from Riverside, CA to San Marcos, TX) is 1,173.09 mi.

1,323 mi = 1.61 kms