There are
2,084 mi
from Riverside, CA to Crossville, TN
That's the driving distance. It would take 1 day 12 hours to go from Riverside, California to Crossville, Tennessee.
The flight distance (direct flight from Riverside, CA to Crossville, TN) is 1,829.92 mi.
2,084 mi = 3,354.44 kms