The road measures 155.31 miles long and would take a car obeying speed limits 3 hours and 52 minutes to travel its length.
The A487 is a A Road and is located in the Zone 4 Highways Region.
This is a true long-distance route, journeying through numerous towns like GOODWICK, Manorowen, Castle Morris, Mathry, Square and Compass, Trefin, Croesgoch, Solva, St. Davids, Pen Y Cwm, Newgale, Roch, Simpson Cross, HAVERFORDWEST, Keeston, Pelcomb Cross, Pelcomb Bridge, MILFORD HAVEN, FISHGUARD, Lower Town, Dinas Cross, NEWPORT, Nevern, Velindre, Eglwyswrw, Llantood, Glanrhyd, CARDIGAN, Pantygrwndy, North Park Estate, Penparc, Tremain, Blaenannerch, Blaenporth, Tanygroes, Sarnau, Brynhoffnant, Rhydlewis, Pentregat, Plwmp, Synod Inn, LLANARTH, Llwyncelyn, Ffosyffin, ABERAERON, Aberarth, LLANON, LLANRHYSTUD, Llanddeiniol, Blaenplwyf, Llanfarian, Rhydyfelin, Southgate, Penparcau, ABERYSTWYTH, Penglais, Waunfawr, Comins Coch, BOW STREET, Llandre, TALYBONT, Taliesin, Tre'r Ddol, Furnace, Eglwys Fach, Glandyfi, Derwenlas, Glas Pwll, MACHYNLLETH, Ffriddgate, Pantperthog, Ceinws, Corris, Upper Corris, Tal Y Llyn, DOLGELLAU, BANGOR, Treborth, Penrhosgarnedd, Vaynol Park, Capel Y Graig, Y FELINHELI, CAERNARFON, Griffiths Crossing, Rhosbodrual, Caeathro, Bontnewydd, Dinas, Llanwnda, Groeslon, Penygroes, Llanllyfni, Nasareth, Pantglas, Bryncir, GARNDOLBENMAEN, CRICCIETH, Penmorfa, Tremadog, PORTHMADOG, Minffordd, PENRHYNDEUDRAETH, Tan-y-Bwlch, Maentwrog, and Gellilydan.
The road passes through several counties, including Dyfed, Powys, and Gwynedd.