There are
2,073 mi
from Clarksville, TN to Porterville, CA
That's the driving distance. It would take 1 day 12 hours to go from Clarksville, Tennessee to Porterville, California.
The flight distance (direct flight from Clarksville, TN to Porterville, CA) is 1,755.16 mi.
2,073 mi = 3.22 kms