Miles between Decatur, IL and Merrillville, IN

There are
171 mi
from Decatur, IL to Merrillville, IN

That's the driving distance. It would take 3 hours 29 mins to go from Decatur, Illinois to Merrillville, Indiana.

The flight distance (direct flight from Decatur, IL to Merrillville, IN) is 141.79 mi.

171 mi = 275.79 kms