Miles between St Peters, MO and Johnston, IA

There are
332 mi
from St Peters, MO to Johnston, IA

That's the driving distance. It would take 6 hours 37 mins to go from St Peters, Missouri to Johnston, Iowa.

The flight distance (direct flight from St Peters, MO to Johnston, IA) is 258.23 mi.

332 mi = 534.64 kms