The road measures 87.41 miles long and would take a car obeying speed limits 1 hours and 38 minutes to travel its length.
The A55 is a A Road and is located in the Zone 5 Highways Region.
This is a true long-distance route, journeying through numerous towns like HOLYHEAD, Penrhos, Valley, Caergeiliog, Bryngwran, Gwalchmai, Cerrigceinwen, Llangristiolus, LLANGEFNI, GAERWEN, Pentre Berw, Star, LLANFAIRPWLLGWYNGYLL, BANGOR, Treborth, Penrhosgarnedd, Caerhun, Waen Wen, Glasinfryn, Llandygai, Talybont, Abergwyngregyn, LLANFAIRFECHAN, PENMAENMAWR, Dwygyfylchi, CONWY, Deganwy, LLANDUDNO JUNCTION, Tremarl Industrial Estate, Glan Conwy Corner, Dolwyd, Mochdre, Rhos On Sea, COLWYN BAY, Old Colwyn, Tan-y-Lan, Llanddulas, ABERGELE, Pensarn, St. George, Bodelwyddan, ST. ASAPH, Rhuallt, Waen, Caerwys, Lloc, Pantasaph, HOLYWELL, Brynford, Milwr, Pentre Halkyn, Halkyn, Northop, Flint Mountain, Northop Hall, Ewloe, Ewloe Green, BUCKLEY, Hawarden, Dobshill, Broughton, Balderton, Marlston-cum-Lache, CHESTER, Chester Business Park, Huntington, Great Boughton, Christleton, Littleton, Guilden Sutton, and Hoole Village.
The road passes through several counties, including Gwynedd, Clwyd, and Cheshire.