Miles between St Peters, MO and Dekalb, IL

There are
300 mi
from St Peters, MO to Dekalb, IL

That's the driving distance. It would take 5 hours 36 mins to go from St Peters, Missouri to Dekalb, Illinois.

The flight distance (direct flight from St Peters, MO to Dekalb, IL) is 238.60 mi.

300 mi = 482.37 kms