There are
1,992 mi
from Clarksville, TN to Fullerton, CA
That's the driving distance. It would take 1 day 10 hours to go from Clarksville, Tennessee to Fullerton, California.
The flight distance (direct flight from Clarksville, TN to Fullerton, CA) is 1,728.19 mi.
1,992 mi = 3,206.22 kms