There are
1,987 mi
from Fullerton, CA to Clarksville, TN
That's the driving distance. It would take 1 day 10 hours to go from Fullerton, California to Clarksville, Tennessee.
The flight distance (direct flight from Fullerton, CA to Clarksville, TN) is 1,728.19 mi.
1,987 mi = 3,197.23 kms