188 miles
The distance from Neath to Swansea is approximately 8 miles.
872 miles
About 184 miles.
4 hrs
270 miles taking this route:Take M4(E) CARDIFF, from Swansea, to M25(S) GATWICK AIRPORT at J4B.Take M25 (London Orbital), around London, to M20 to the CHANNEL TUNNEL and DOVER, via M26 (at J5 on M25).Take M20/A20 to DOVER.
The distance between Holyhead UK and Swansea UK is about 170 road miles.
100 miles taking A483 NEWTON from Welshpool to M4, and then the M4 MOTORWAY to Swansea.
Assuming that you are driving, it should take about 23 hours to drive (and take trains and ferries) the 1,350 miles from Swansea to Oslo.
If your talking Southport, England to Swansea Wales, then taking the M6 it is about: 4 hrs 7 mins / 235.15 miles / 378.2 kms
It is just over fifty miles.
50.4 miles - about 1 hour 1 min centre to centre