| Caerfyrddin to Blumberg | 635.05 mi (1,022.02 km) |
| Caerfyrddin to Bobenheim-Roxheim | 575.49 mi (926.16 km) |
| Caerfyrddin to Bobingen | 713.95 mi (1,148.99 km) |
| Caerfyrddin to Boblingen | 627.05 mi (1,009.14 km) |
| Caerfyrddin to Bocholt | 466.23 mi (750.33 km) |
| Caerfyrddin to Bochum | 494.32 mi (795.53 km) |
| Caerfyrddin to Bockenem | 614.57 mi (989.06 km) |
| Caerfyrddin to Bockhorn | 527.39 mi (848.76 km) |
| Caerfyrddin to Bogen | 773.94 mi (1,245.53 km) |
| Caerfyrddin to Bohl-Iggelheim | 578.64 mi (931.24 km) |
| Caerfyrddin to Bohmte | 536.51 mi (863.42 km) |
| Caerfyrddin to Boizenburg | 638.03 mi (1,026.81 km) |
| Caerfyrddin to Bonen | 516.49 mi (831.21 km) |
| Caerfyrddin to Bonn | 498.76 mi (802.67 km) |
| Caerfyrddin to Bopfingen | 677.62 mi (1,090.53 km) |
