Miles between Boulder, CO and Watertown, MA

There are
1,988 mi
from Boulder, CO to Watertown, MA

That's the driving distance. It would take 1 day 12 hours to go from Boulder, Colorado to Watertown, Massachusetts.

The flight distance (direct flight from Boulder, CO to Watertown, MA) is 1,767.88 mi.

1,988 mi = 1.61 kms