The distance between Carmarthen to Caernarfon via Aberystwyth, Carmarthen is 343 Mi by road. You can also find the distance from Carmarthen to Caernarfon via Aberystwyth, Carmarthen using other travel options like bus, subway, tram, train and rail. Apart from the trip distance, refer
Directions from Carmarthen to Caernarfon via Aberystwyth, Carmarthen for road driving directions!