Miles between Dayton, OH and Grafton, WI

There are
399 mi
from Dayton, OH to Grafton, WI

That's the driving distance. It would take 7 hours 53 mins to go from Dayton, Ohio to Grafton, Wisconsin.

The flight distance (direct flight from Dayton, OH to Grafton, WI) is 313.58 mi.

399 mi = 642.30 kms