Miles between Round Rock, TX and San Marcos, CA

There are
1,329 mi
from Round Rock, TX to San Marcos, CA

That's the driving distance. It would take 22 hours 56 mins to go from Round Rock, Texas to San Marcos, California.

The flight distance (direct flight from Round Rock, TX to San Marcos, CA) is 1,156.66 mi.

1,329 mi = 1.61 kms