| Portimao to Borgosatollo | 1,128.10 mi (1,815.50 km) |
| Portimao to Borgosesia | 1,049.88 mi (1,689.62 km) |
| Portimao to Boscoreale | 1,258.31 mi (2,025.06 km) |
| Portimao to Boscotrecase | 1,257.53 mi (2,023.79 km) |
| Portimao to Botticino Sera | 1,129.42 mi (1,817.63 km) |
| Portimao to Bovalino Marina | 1,349.43 mi (2,171.69 km) |
| Portimao to Boves | 975.54 mi (1,569.99 km) |
| Portimao to Boville Ernica | 1,211.92 mi (1,950.40 km) |
| Portimao to Bovisio Masciago | 1,084.55 mi (1,745.41 km) |
| Portimao to Bovolone | 1,161.91 mi (1,869.91 km) |
| Portimao to Bra | 999.78 mi (1,608.99 km) |
| Portimao to Bracciano | 1,151.59 mi (1,853.31 km) |
| Portimao to Brandizzo | 1,014.03 mi (1,631.92 km) |
| Portimao to Breganze | 1,193.13 mi (1,920.15 km) |
| Portimao to Brembate | 1,101.41 mi (1,772.55 km) |
