There are
273 mi
from Rockford, IL to Muskegon Heights, MI
That's the driving distance. It would take 5 hours 25 mins to go from Rockford, Illinois to Muskegon Heights, Michigan.
The flight distance (direct flight from Rockford, IL to Muskegon Heights, MI) is 158.49 mi.
273 mi = 439.67 kms