What is the distance from Calgary Alberta to Boulder CO?

Answer 1

1,738KILOMETRES or 1,080 miles; about an 18 hour drive taking this route:

1. Go down to the CANADA/U.S.A. BORDER PORT OF ENTRY and I-15 at COUTTS via HIGHWAY 2 SOUTH, HIGHWAY 3 EAST, and HIGHWAY 4 SOUTH.
2. Cross at the border from COUTTS, Alberta, CANADA into SWEETGRASS, Montana, U.S.A.
3. From there, follow I-15 SOUTH to I-90 EAST to BILLINGS at EXIT 129 near Butte.
4. Take I-90 EAST through Montana to I-25 SOUTH to CASPER at EXIT 56B in Wyoming.
5. Take I-25 SOUTH through Wyoming to NORTHWEST PKWY (tollway) to BROOMFIELD at EXIT 228 (stay right on the exit ramp).
6. Take the NW PKWY to U.S. 36. Turn right onto the onramp to U.S. 36 NORTH to BOULDER. This will be near Broomfield.
7. Take U.S. 36 NORTH to Boulder.