Miles between San Marcos, CA and Roy, UT

There are
749 mi
from San Marcos, CA to Roy, UT

That's the driving distance. It would take 13 hours 6 mins to go from San Marcos, California to Roy, Utah.

The flight distance (direct flight from San Marcos, CA to Roy, UT) is 621.82 mi.

749 mi = 1,205.93 kms