There are
814 mi
from Clarksville, TN to Vadnais Heights, MN
That's the driving distance. It would take 15 hours 21 mins to go from Clarksville, Tennessee to Vadnais Heights, Minnesota.
The flight distance (direct flight from Clarksville, TN to Vadnais Heights, MN) is 660.26 mi.
814 mi = 1,310.47 kms