There are
2,518 mi
from San Mateo, CA to Gainesville, GA
That's the driving distance. It would take 1 day 20 hours to go from San Mateo, California to Gainesville, Georgia.
The flight distance (direct flight from San Mateo, CA to Gainesville, GA) is 2,150.82 mi.
2,518 mi = 3.22 kms