There are
1,981 mi
from Clarksville, TN to Walnut, CA
That's the driving distance. It would take 1 day 10 hours to go from Clarksville, Tennessee to Walnut, California.
The flight distance (direct flight from Clarksville, TN to Walnut, CA) is 1,722.23 mi.
1,981 mi = 3,188.57 kms