Miles between St Joseph, MO and Round Lake, IL

There are
511 mi
from St Joseph, MO to Round Lake, IL

That's the driving distance. It would take 9 hours 45 mins to go from St Joseph, Missouri to Round Lake, Illinois.

The flight distance (direct flight from St Joseph, MO to Round Lake, IL) is 394.28 mi.

511 mi = 821.62 kms