There are
2,367 mi
from San Marcos, CA to Middleburg Heights, OH
That's the driving distance. It would take 1 day 17 hours to go from San Marcos, California to Middleburg Heights, Ohio.
The flight distance (direct flight from San Marcos, CA to Middleburg Heights, OH) is 2,010 mi.
2,367 mi = 3.22 kms