There are
2,301 mi
from Gallatin, TN to San Ramon, CA
That's the driving distance. It would take 1 day 16 hours to go from Gallatin, Tennessee to San Ramon, California.
The flight distance (direct flight from Gallatin, TN to San Ramon, CA) is 1,949.03 mi.
2,301 mi = 3,703.54 kms