Miles between Boulder, CO and Mercer Island, WA

There are
1,288 mi
from Boulder, CO to Mercer Island, WA

That's the driving distance. It would take 22 hours 25 mins to go from Boulder, Colorado to Mercer Island, Washington.

The flight distance (direct flight from Boulder, CO to Mercer Island, WA) is 990.40 mi.

1,288 mi = 1.61 kms