There are
1,963 mi
from Clarksville, TN to San Bernardino, CA
That's the driving distance. It would take 1 day 10 hours to go from Clarksville, Tennessee to San Bernardino, California.
The flight distance (direct flight from Clarksville, TN to San Bernardino, CA) is 1,688.84 mi.
1,963 mi = 1.61 kms