There are
674 mi
from Rowlett, TX to Shelbyville, TN
That's the driving distance. It would take 12 hours 16 mins to go from Rowlett, Texas to Shelbyville, Tennessee.
The flight distance (direct flight from Rowlett, TX to Shelbyville, TN) is 603.99 mi.
674 mi = 1,084.10 kms