Miles between Boulder, CO and Grand Rapids, MI

There are
1,178 mi
from Boulder, CO to Grand Rapids, MI

That's the driving distance. It would take 20 hours 58 mins to go from Boulder, Colorado to Grand Rapids, Michigan.

The flight distance (direct flight from Boulder, CO to Grand Rapids, MI) is 1,032.32 mi.

1,178 mi = 1.61 kms