Miles between Boulder, CO and Grain Valley, MO

There are
644 mi
from Boulder, CO to Grain Valley, MO

That's the driving distance. It would take 11 hours 4 mins to go from Boulder, Colorado to Grain Valley, Missouri.

The flight distance (direct flight from Boulder, CO to Grain Valley, MO) is 593.83 mi.

644 mi = 1,036.17 kms