| Caerfyrddin to Beuvry | 316.55 mi (509.44 km) |
| Caerfyrddin to Beziers | 683.88 mi (1,100.59 km) |
| Caerfyrddin to Bezons | 351.66 mi (565.95 km) |
| Caerfyrddin to Biarritz | 592.65 mi (953.77 km) |
| Caerfyrddin to Biganos | 521.27 mi (838.90 km) |
| Caerfyrddin to Billere | 618.33 mi (995.11 km) |
| Caerfyrddin to Biot | 775.58 mi (1,248.18 km) |
| Caerfyrddin to Biscarrosse | 535.60 mi (861.97 km) |
| Caerfyrddin to Bischheim | 577.58 mi (929.53 km) |
| Caerfyrddin to Bischwiller | 577.10 mi (928.76 km) |
| Caerfyrddin to Blagnac | 626.28 mi (1,007.91 km) |
| Caerfyrddin to Blain | 323.38 mi (520.43 km) |
| Caerfyrddin to Blanquefort | 508.53 mi (818.40 km) |
| Caerfyrddin to Blois | 387.42 mi (623.49 km) |
| Caerfyrddin to Bobigny | 360.33 mi (579.89 km) |
