There are
179 mi
from Chattanooga, TN to Clarksville, TN
That's the driving distance. It would take 3 hours 26 mins to go from Chattanooga, Tennessee to Clarksville, Tennessee.
The flight distance (direct flight from Chattanooga, TN to Clarksville, TN) is 153.99 mi.
179 mi = 288.60 kms