There are
2,530 mi
from San Leandro, CA to Greeneville, TN
That's the driving distance. It would take 1 day 20 hours to go from San Leandro, California to Greeneville, Tennessee.
The flight distance (direct flight from San Leandro, CA to Greeneville, TN) is 2,158.24 mi.
2,530 mi = 4,071.20 kms