There are
1,917 mi
from San Mateo, CA to Tomball, TX
That's the driving distance. It would take 1 day 9 hours to go from San Mateo, California to Tomball, Texas.
The flight distance (direct flight from San Mateo, CA to Tomball, TX) is 1,610.92 mi.
1,917 mi = 1.61 kms