There are
1,940 mi
from Conroe, TX to San Mateo, CA
That's the driving distance. It would take 1 day 9 hours to go from Conroe, Texas to San Mateo, California.
The flight distance (direct flight from Conroe, TX to San Mateo, CA) is 1,613.13 mi.
1,940 mi = 3,122.89 kms