It is 37.52 miles according to MapQuest.
150 miles taking this route:Take I-75 NORTH from Chattanooga to I-40 EAST to KNOXVILLE off EXIT 84A.Continue on I-40 EAST to TN-66 to GATLINBURG SEVIERVILLE and PIGEON FORGE off EXIT 407. To bypass KNOXVILLE, take I-640 EAST (EXIT 385 off I-40).Follow TN-66 SOUTH to U.S. 441 SOUTH to GATLINBURG; continue straight on U.S. 441 SOUTH to GATLINBURG.
201 miles
111 miles
334 miles
50miles
The shortest driving distance is 218 miles.
about 485 miles
It is 89.4 miles according to Google Maps.
655 miles
about 200 miles
About 645 miles.
240 miles