There are
2,135 mi
from San Clemente, CA to Crossville, TN
That's the driving distance. It would take 1 day 13 hours to go from San Clemente, California to Crossville, Tennessee.
The flight distance (direct flight from San Clemente, CA to Crossville, TN) is 1,850.86 mi.
2,135 mi = 3,435.26 kms