There are
2,308 mi
from Clarksville, TN to Pittsburg, CA
That's the driving distance. It would take 1 day 16 hours to go from Clarksville, Tennessee to Pittsburg, California.
The flight distance (direct flight from Clarksville, TN to Pittsburg, CA) is 1,890.04 mi.
2,308 mi = 3.22 kms