There are
2,143 mi
from Hoffman Estates, IL to San Mateo, CA
That's the driving distance. It would take 1 day 12 hours to go from Hoffman Estates, Illinois to San Mateo, California.
The flight distance (direct flight from Hoffman Estates, IL to San Mateo, CA) is 1,829.18 mi.
2,143 mi = 3,448.77 kms