There are
2,460 mi
from Knoxville, TN to Fremont, CA
That's the driving distance. It would take 1 day 19 hours to go from Knoxville, Tennessee to Fremont, California.
The flight distance (direct flight from Knoxville, TN to Fremont, CA) is 2,095.83 mi.
2,460 mi = 3.22 kms