Miles between San Marcos, CA and Quincy, IL

There are
1,871 mi
from San Marcos, CA to Quincy, IL

That's the driving distance. It would take 1 day 8 hours to go from San Marcos, California to Quincy, Illinois.

The flight distance (direct flight from San Marcos, CA to Quincy, IL) is 1,498.62 mi.

1,871 mi = 1.61 kms