Miles between Boulder, CO and Gresham, OR

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

That's the driving distance. It would take 21 hours 6 mins to go from Boulder, Colorado to Gresham, Oregon.

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

1,222 mi = 1,967.18 kms