| Caerfyrddin to Boppard | 528.64 mi (850.76 km) |
| Caerfyrddin to Borgentreich | 580.29 mi (933.88 km) |
| Caerfyrddin to Borgholzhausen | 536.51 mi (863.43 km) |
| Caerfyrddin to Borken | 476.87 mi (767.45 km) |
| Caerfyrddin to Borna | 723.68 mi (1,164.65 km) |
| Caerfyrddin to Bornheim | 494.30 mi (795.50 km) |
| Caerfyrddin to Bosel | 522.31 mi (840.58 km) |
| Caerfyrddin to Bottrop | 481.44 mi (774.81 km) |
| Caerfyrddin to Bovenden | 608.72 mi (979.63 km) |
| Caerfyrddin to Brackenheim | 617.87 mi (994.37 km) |
| Caerfyrddin to Brake | 546.02 mi (878.74 km) |
| Caerfyrddin to Brakel | 576.23 mi (927.35 km) |
| Caerfyrddin to Bramsche | 522.41 mi (840.74 km) |
| Caerfyrddin to Brand | 458.75 mi (738.29 km) |
| Caerfyrddin to Brand-Erbisdorf | 762.09 mi (1,226.46 km) |
