181 miles taking this route:
Neath is right next to Swansea.
About 184 miles.
188 miles
872 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
From Richmond, Virginia to Boston, Massachusetts is 474.0 miles.
It is just over fifty miles.
How many miles from Richmond VA is Virginia Beach, VA?
154 miles