Miles between Westminster, CO and Gillette, WY

There are
336 mi
from Westminster, CO to Gillette, WY

That's the driving distance. It would take 5 hours 56 mins to go from Westminster, Colorado to Gillette, Wyoming.

The flight distance (direct flight from Westminster, CO to Gillette, WY) is 308.69 mi.

336 mi = 540.85 kms