There are
332 mi
from Clarksville, TN to Champaign, IL
That's the driving distance. It would take 6 hours 13 mins to go from Clarksville, Tennessee to Champaign, Illinois.
The flight distance (direct flight from Clarksville, TN to Champaign, IL) is 252.40 mi.
332 mi = 535.07 kms