There are
2,027 mi
from Fullerton, CA to Merrillville, IN
That's the driving distance. It would take 1 day 11 hours to go from Fullerton, California to Merrillville, Indiana.
The flight distance (direct flight from Fullerton, CA to Merrillville, IN) is 1,743.19 mi.
2,027 mi = 3.22 kms