There are
825 mi
from Waterloo, IA to Sevierville, TN
That's the driving distance. It would take 15 hours 8 mins to go from Waterloo, Iowa to Sevierville, Tennessee.
The flight distance (direct flight from Waterloo, IA to Sevierville, TN) is 655.58 mi.
825 mi = 1,327.90 kms