There are
2,407 mi
from San Mateo, CA to Crossville, TN
That's the driving distance. It would take 1 day 18 hours to go from San Mateo, California to Crossville, Tennessee.
The flight distance (direct flight from San Mateo, CA to Crossville, TN) is 2,054.22 mi.
2,407 mi = 3.22 kms