Mapquest says about 229 miles (about 4 hours driving time).
The distance between Holyhead UK and Swansea UK is about 170 road miles.
Road miles between London UK to he city of Holyhead Wales UK
The distance between Cardiff, UK and Abergavenny, UK is about 32.1 road miles.
230 miles
The total distance, as the crow flies, between Florida and Cardiff, UK is 4,267 miles, or 6,867 kilometres.
140 miles
It is about 291 miles by car from Holyhead, Isle of Anglesey, UK to Birgham, Scottish Borders, UK.
274 miles
It's about 175 miles and should take about 3 hours by road.
Holyhead is in the northwest corner of Wales. See the map at the link below.
1 hour, 7 mins (58 Miles) as per Mapquest UK.
The straight line distance from Cardiff to Melbourne is approximately 10,615 miles.