There are
2,423 mi
from San Mateo, CA to East Ridge, TN
That's the driving distance. It would take 1 day 18 hours to go from San Mateo, California to East Ridge, Tennessee.
The flight distance (direct flight from San Mateo, CA to East Ridge, TN) is 2,060.01 mi.
2,423 mi = 3.22 kms