There are
2,430 mi
from Knoxville, TN to Watsonville, CA
That's the driving distance. It would take 1 day 18 hours to go from Knoxville, Tennessee to Watsonville, California.
The flight distance (direct flight from Knoxville, TN to Watsonville, CA) is 2,090.35 mi.
2,430 mi = 3.22 kms