Miles between Boulder, CO and Union, NJ

There are
1,780 mi
from Boulder, CO to Union, NJ

That's the driving distance. It would take 1 day 8 hours to go from Boulder, Colorado to Union, New Jersey.

The flight distance (direct flight from Boulder, CO to Union, NJ) is 1,624.77 mi.

1,780 mi = 1.61 kms