There are
2,306 mi
from Pittsburg, CA to Gallatin, TN
That's the driving distance. It would take 1 day 16 hours to go from Pittsburg, California to Gallatin, Tennessee.
The flight distance (direct flight from Pittsburg, CA to Gallatin, TN) is 1,941.63 mi.
2,306 mi = 3,710.57 kms