There are
1,658 mi
from San Mateo, CA to Kerrville, TX
That's the driving distance. It would take 1 day 4 hours to go from San Mateo, California to Kerrville, Texas.
The flight distance (direct flight from San Mateo, CA to Kerrville, TX) is 1,424.09 mi.
1,658 mi = 1.61 kms