There are
2,161 mi
from Hayward, CA to Merrillville, IN
That's the driving distance. It would take 1 day 13 hours to go from Hayward, California to Merrillville, Indiana.
The flight distance (direct flight from Hayward, CA to Merrillville, IN) is 1,856.55 mi.
2,161 mi = 3.22 kms