Miles between Green Bay, WI and Johnston, IA

There are
422 mi
from Green Bay, WI to Johnston, IA

That's the driving distance. It would take 8 hours 27 mins to go from Green Bay, Wisconsin to Johnston, Iowa.

The flight distance (direct flight from Green Bay, WI to Johnston, IA) is 347.74 mi.

422 mi = 679.01 kms