Calculate route from Back Mountain (Pennsylvania, United States) to Allentown (Pennsylvania, United States).
The flight distance (as the crow flies) between Back Mountain and Allentown is 91.3 km.
Roadmap (route) to go from Back Mountain to Allentown detailed above, you can also see the course layout on the map.
While doing trip Back Mountain - Allentown by car, the calculated route ends at a distance , or more straight.