There are
2,299 mi
from San Mateo, CA to Coldwater, MI
That's the driving distance. It would take 1 day 16 hours to go from San Mateo, California to Coldwater, Michigan.
The flight distance (direct flight from San Mateo, CA to Coldwater, MI) is 1,989.71 mi.
2,299 mi = 3.22 kms