| Portchester to Borgosatollo | 640.42 mi (1,030.66 km) |
| Portchester to Borgosesia | 557.56 mi (897.30 km) |
| Portchester to Boscoreale | 1,020.56 mi (1,642.43 km) |
| Portchester to Boscotrecase | 1,019.13 mi (1,640.12 km) |
| Portchester to Botticino Sera | 637.67 mi (1,026.23 km) |
| Portchester to Bovalino Marina | 1,216.77 mi (1,958.21 km) |
| Portchester to Boves | 603.74 mi (971.62 km) |
| Portchester to Boville Ernica | 939.85 mi (1,512.55 km) |
| Portchester to Bovisio Masciago | 593.90 mi (955.78 km) |
| Portchester to Bovolone | 683.93 mi (1,100.68 km) |
| Portchester to Bra | 593.83 mi (955.67 km) |
| Portchester to Bracciano | 872.51 mi (1,404.17 km) |
| Portchester to Brandizzo | 569.06 mi (915.82 km) |
| Portchester to Breganze | 681.74 mi (1,097.16 km) |
| Portchester to Brembate | 609.30 mi (980.58 km) |
