Miles between Greeley, CO and Newton, IA

There are
678 mi
from Greeley, CO to Newton, IA

That's the driving distance. It would take 12 hours 7 mins to go from Greeley, Colorado to Newton, Iowa.

The flight distance (direct flight from Greeley, CO to Newton, IA) is 612.91 mi.

678 mi = 1,091.34 kms