The road measures 23.94 miles long and would take a car obeying speed limits 43 minutes to travel its length.
The B5109 is a B Road and is located in the Zone 5 Highways Region.
This is a true long-distance route, journeying through numerous towns like Llanynghenedl, Bodedern, Trefor, Tyn Lon, Bodffordd, LLANGEFNI, Talwrn, PENTRAETH, Llansadwrn, BEAUMARIS, Llanfaes, and Llangoed.
The road is located entirely within Gwynedd.