| Merthyr Tudful to Bernburg | 644.94 mi (1,037.92 km) |
| Merthyr Tudful to Bersenbruck | 481.57 mi (775.01 km) |
| Merthyr Tudful to Besigheim | 582.53 mi (937.49 km) |
| Merthyr Tudful to Bestwig | 506.10 mi (814.48 km) |
| Merthyr Tudful to Betzdorf | 490.39 mi (789.20 km) |
| Merthyr Tudful to Beverstedt | 524.42 mi (843.97 km) |
| Merthyr Tudful to Beverungen | 545.31 mi (877.59 km) |
| Merthyr Tudful to Bexbach | 494.91 mi (796.48 km) |
| Merthyr Tudful to Biberach | 636.12 mi (1,023.74 km) |
| Merthyr Tudful to Biblis | 536.02 mi (862.65 km) |
| Merthyr Tudful to Bieber | 523.54 mi (842.56 km) |
| Merthyr Tudful to Biedenkopf | 516.81 mi (831.73 km) |
| Merthyr Tudful to Bielefeld | 507.87 mi (817.34 km) |
| Merthyr Tudful to Bietigheim-Bissingen | 583.06 mi (938.35 km) |
| Merthyr Tudful to Billerbeck | 455.30 mi (732.73 km) |
