The road measures 20.67 miles long and would take a car obeying speed limits 36 minutes to travel its length.
The B4313 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 FISHGUARD, Llanychaer, Pontfaen, Rosebush, Maenclochog, Llanycefn, Penffordd, CLYNDERWEN, Gelly, Grondre, Bethesda, Pont-Shan, Sodston, and NARBERTH.
The road is located entirely within Dyfed.