There are
2,144 mi
from Oceanside, CA to Crossville, TN
That's the driving distance. It would take 1 day 13 hours to go from Oceanside, California to Crossville, Tennessee.
The flight distance (direct flight from Oceanside, CA to Crossville, TN) is 1,841.96 mi.
2,144 mi = 3.22 kms