Miles between St Louis, MO and Janesville, WI

There are
323 mi
from St Louis, MO to Janesville, WI

That's the driving distance. It would take 6 hours 3 mins to go from St Louis, Missouri to Janesville, Wisconsin.

The flight distance (direct flight from St Louis, MO to Janesville, WI) is 286.97 mi.

323 mi = 519.75 kms