There are
807 mi
from Norwalk, CT to Merrillville, IN
That's the driving distance. It would take 15 hours 8 mins to go from Norwalk, Connecticut to Merrillville, Indiana.
The flight distance (direct flight from Norwalk, CT to Merrillville, IN) is 722.46 mi.
807 mi = 1,298.51 kms