70 miles taking this route:
The distance from Neath to Swansea is approximately 8 miles.
About 184 miles.
872 miles
188 miles
100 miles taking A483 NEWTON from Welshpool to M4, and then the M4 MOTORWAY to Swansea.
The distance between Holyhead UK and Swansea UK is about 170 road miles.
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.
The distance from Derby to Swansea is about 180 miles by road.
80 miles taking M4 (EAST) towards CARDIFF.
50.4 miles - about 1 hour 1 min centre to centre