| Merthyr Tudful to Beausoleil | 745.10 mi (1,199.13 km) |
| Merthyr Tudful to Beauvais | 288.29 mi (463.96 km) |
| Merthyr Tudful to Begles | 496.38 mi (798.85 km) |
| Merthyr Tudful to Belfort | 537.19 mi (864.53 km) |
| Merthyr Tudful to Bellegarde-sur-Valserine | 570.34 mi (917.87 km) |
| Merthyr Tudful to Bellerive-sur-Allier | 495.46 mi (797.36 km) |
| Merthyr Tudful to Bellevue | 322.41 mi (518.86 km) |
| Merthyr Tudful to Belley | 583.57 mi (939.16 km) |
| Merthyr Tudful to Berck-sur-Mer | 234.60 mi (377.56 km) |
| Merthyr Tudful to Bergerac | 508.02 mi (817.58 km) |
| Merthyr Tudful to Bernay | 253.47 mi (407.92 km) |
| Merthyr Tudful to Berre-l'Etang | 695.23 mi (1,118.86 km) |
| Merthyr Tudful to Besancon | 523.45 mi (842.42 km) |
| Merthyr Tudful to Bethune | 273.96 mi (440.90 km) |
| Merthyr Tudful to Betton | 257.78 mi (414.85 km) |
