There are
2,483 mi
from Knoxville, TN to Hercules, CA
That's the driving distance. It would take 1 day 19 hours to go from Knoxville, Tennessee to Hercules, California.
The flight distance (direct flight from Knoxville, TN to Hercules, CA) is 2,107.26 mi.
2,483 mi = 3,996.36 kms