There are
2,298 mi
from Sunnyvale, CA to Gallatin, TN
That's the driving distance. It would take 1 day 16 hours to go from Sunnyvale, California to Gallatin, Tennessee.
The flight distance (direct flight from Sunnyvale, CA to Gallatin, TN) is 1,956.42 mi.
2,298 mi = 3,698.41 kms