There are
570 mi
from Chattanooga, TN to North Royalton, OH
That's the driving distance. It would take 11 hours 2 mins to go from Chattanooga, Tennessee to North Royalton, Ohio.
The flight distance (direct flight from Chattanooga, TN to North Royalton, OH) is 474.72 mi.
570 mi = 916.66 kms