There are
2,097 mi
from Tacoma, WA to Merrillville, IN
That's the driving distance. It would take 1 day 12 hours to go from Tacoma, Washington to Merrillville, Indiana.
The flight distance (direct flight from Tacoma, WA to Merrillville, IN) is 1,763.53 mi.
2,097 mi = 3.22 kms