Miles between Decatur, IL and Mequon, WI

There are
279 mi
from Decatur, IL to Mequon, WI

That's the driving distance. It would take 5 hours 26 mins to go from Decatur, Illinois to Mequon, Wisconsin.

The flight distance (direct flight from Decatur, IL to Mequon, WI) is 239.86 mi.

279 mi = 448.78 kms