There are
692 mi
from Clarksville, TN to Wausau, WI
That's the driving distance. It would take 13 hours 9 mins to go from Clarksville, Tennessee to Wausau, Wisconsin.
The flight distance (direct flight from Clarksville, TN to Wausau, WI) is 594.34 mi.
692 mi = 1,113.13 kms