| Caerfyrddin to Borgosatollo | 794.95 mi (1,279.35 km) |
| Caerfyrddin to Borgosesia | 711.16 mi (1,144.51 km) |
| Caerfyrddin to Boscoreale | 1,173.65 mi (1,888.81 km) |
| Caerfyrddin to Boscotrecase | 1,172.22 mi (1,886.51 km) |
| Caerfyrddin to Botticino Sera | 792.22 mi (1,274.96 km) |
| Caerfyrddin to Bovalino Marina | 1,368.80 mi (2,202.86 km) |
| Caerfyrddin to Boves | 753.25 mi (1,212.23 km) |
| Caerfyrddin to Boville Ernica | 1,093.00 mi (1,759.01 km) |
| Caerfyrddin to Bovisio Masciago | 748.05 mi (1,203.87 km) |
| Caerfyrddin to Bovolone | 838.56 mi (1,349.54 km) |
| Caerfyrddin to Bra | 744.86 mi (1,198.74 km) |
| Caerfyrddin to Bracciano | 1,024.99 mi (1,649.55 km) |
| Caerfyrddin to Brandizzo | 721.16 mi (1,160.59 km) |
| Caerfyrddin to Breganze | 836.36 mi (1,345.99 km) |
| Caerfyrddin to Brembate | 763.65 mi (1,228.98 km) |
