Miles between St Peters, MO and Rockford, IL

There are
315 mi
from St Peters, MO to Rockford, IL

That's the driving distance. It would take 5 hours 54 mins to go from St Peters, Missouri to Rockford, Illinois.

The flight distance (direct flight from St Peters, MO to Rockford, IL) is 254.02 mi.

315 mi = 507.44 kms