| Caerphilly to Beuvry | 266.31 mi (428.58 km) |
| Caerphilly to Beziers | 642.67 mi (1,034.28 km) |
| Caerphilly to Bezons | 301.93 mi (485.91 km) |
| Caerphilly to Biarritz | 564.80 mi (908.96 km) |
| Caerphilly to Biganos | 490.03 mi (788.63 km) |
| Caerphilly to Billere | 586.66 mi (944.14 km) |
| Caerphilly to Biot | 728.35 mi (1,172.16 km) |
| Caerphilly to Biscarrosse | 505.38 mi (813.33 km) |
| Caerphilly to Bischheim | 526.93 mi (848.01 km) |
| Caerphilly to Bischwiller | 526.53 mi (847.37 km) |
| Caerphilly to Blagnac | 588.91 mi (947.77 km) |
| Caerphilly to Blain | 290.81 mi (468.01 km) |
| Caerphilly to Blanquefort | 475.65 mi (765.48 km) |
| Caerphilly to Blois | 342.27 mi (550.82 km) |
| Caerphilly to Bobigny | 310.44 mi (499.60 km) |
