| Caerphilly to Blumberg | 584.29 mi (940.32 km) |
| Caerphilly to Bobenheim-Roxheim | 525.73 mi (846.09 km) |
| Caerphilly to Bobingen | 663.63 mi (1,068.01 km) |
| Caerphilly to Boblingen | 576.64 mi (928.02 km) |
| Caerphilly to Bocholt | 421.14 mi (677.76 km) |
| Caerphilly to Bochum | 448.15 mi (721.22 km) |
| Caerphilly to Bockenem | 570.46 mi (918.07 km) |
| Caerphilly to Bockhorn | 488.56 mi (786.27 km) |
| Caerphilly to Bogen | 724.62 mi (1,166.16 km) |
| Caerphilly to Bohl-Iggelheim | 528.63 mi (850.76 km) |
| Caerphilly to Bohmte | 493.45 mi (794.13 km) |
| Caerphilly to Boizenburg | 598.33 mi (962.92 km) |
| Caerphilly to Bonen | 470.79 mi (757.66 km) |
| Caerphilly to Bonn | 450.55 mi (725.08 km) |
| Caerphilly to Bopfingen | 627.64 mi (1,010.10 km) |
