Miles between Gresham, OR and Boulder, CO

There are
1,222 mi
from Gresham, OR to Boulder, CO

That's the driving distance. It would take 21 hours 3 mins to go from Gresham, Oregon to Boulder, Colorado.

The flight distance (direct flight from Gresham, OR to Boulder, CO) is 946.94 mi.

1,222 mi = 1.61 kms