There are
2,297 mi
from Gallatin, TN to Oakley, CA
That's the driving distance. It would take 1 day 16 hours to go from Gallatin, Tennessee to Oakley, California.
The flight distance (direct flight from Gallatin, TN to Oakley, CA) is 1,932.58 mi.
2,297 mi = 3,696.16 kms