The road measures 16.82 miles long and would take a car obeying speed limits 31 minutes to travel its length.
The B4580 is a B Road and is located in the Zone 4 Highways Region.
This is a true long-distance route, journeying through numerous towns like Brithdir, Llanrhaeadr Ym Mochnant, Moelfre, Llansilin, Rhydycroesau, Llawnt, Old Racecourse, OSWESTRY, and Park Hall.
The road connects Powys and Shropshire.