There are
2,028 mi
from Downey, CA to Shelbyville, TN
That's the driving distance. It would take 1 day 11 hours to go from Downey, California to Shelbyville, Tennessee.
The flight distance (direct flight from Downey, CA to Shelbyville, TN) is 1,794.37 mi.
2,028 mi = 3,263.15 kms