There are
2,133 mi
from Concord, CA to Merrillville, IN
That's the driving distance. It would take 1 day 12 hours to go from Concord, California to Merrillville, Indiana.
The flight distance (direct flight from Concord, CA to Merrillville, IN) is 1,847.07 mi.
2,133 mi = 3.22 kms