| Merthyr Tudful to Blumberg | 594.91 mi (957.41 km) |
| Merthyr Tudful to Bobenheim-Roxheim | 534.66 mi (860.45 km) |
| Merthyr Tudful to Bobingen | 673.20 mi (1,083.42 km) |
| Merthyr Tudful to Boblingen | 586.35 mi (943.65 km) |
| Merthyr Tudful to Bocholt | 426.88 mi (686.99 km) |
| Merthyr Tudful to Bochum | 454.49 mi (731.43 km) |
| Merthyr Tudful to Bockenem | 575.73 mi (926.54 km) |
| Merthyr Tudful to Bockhorn | 491.42 mi (790.86 km) |
| Merthyr Tudful to Bogen | 733.14 mi (1,179.87 km) |
| Merthyr Tudful to Bohl-Iggelheim | 537.83 mi (865.55 km) |
| Merthyr Tudful to Bohmte | 498.18 mi (801.74 km) |
| Merthyr Tudful to Boizenburg | 601.59 mi (968.17 km) |
| Merthyr Tudful to Bonen | 476.87 mi (767.45 km) |
| Merthyr Tudful to Bonn | 458.18 mi (737.38 km) |
| Merthyr Tudful to Bopfingen | 636.80 mi (1,024.83 km) |
