| Portes-les-Valence to Borgosesia | 174.77 mi (281.26 km) |
| Portes-les-Valence to Boscoreale | 562.97 mi (906.01 km) |
| Portes-les-Valence to Boscotrecase | 561.61 mi (903.83 km) |
| Portes-les-Valence to Botticino Sera | 264.69 mi (425.98 km) |
| Portes-les-Valence to Bovalino Marina | 745.13 mi (1,199.17 km) |
| Portes-les-Valence to Boves | 136.71 mi (220.01 km) |
| Portes-les-Valence to Boville Ernica | 485.88 mi (781.94 km) |
| Portes-les-Valence to Bovisio Masciago | 214.12 mi (344.59 km) |
| Portes-les-Valence to Bovolone | 306.39 mi (493.09 km) |
| Portes-les-Valence to Bra | 146.30 mi (235.45 km) |
| Portes-les-Valence to Bracciano | 413.16 mi (664.92 km) |
| Portes-les-Valence to Brandizzo | 146.13 mi (235.18 km) |
| Portes-les-Valence to Breganze | 330.10 mi (531.24 km) |
| Portes-les-Valence to Brembate | 232.83 mi (374.70 km) |
| Portes-les-Valence to Brescia | 264.12 mi (425.07 km) |
