| Portes-les-Valence to Borsbeek | 437.51 mi (704.10 km) |
| Portes-les-Valence to Boussu | 387.41 mi (623.48 km) |
| Portes-les-Valence to Braine-l'Alleud | 401.93 mi (646.84 km) |
| Portes-les-Valence to Braine-le-Chateau | 402.43 mi (647.64 km) |
| Portes-les-Valence to Braine-le-Comte | 397.17 mi (639.19 km) |
| Portes-les-Valence to Brasschaat | 443.92 mi (714.42 km) |
| Portes-les-Valence to Brecht | 447.64 mi (720.40 km) |
| Portes-les-Valence to Bredene | 448.09 mi (721.14 km) |
| Portes-les-Valence to Bree | 433.75 mi (698.05 km) |
| Portes-les-Valence to Bruges | 444.32 mi (715.06 km) |
| Portes-les-Valence to Brussels | 413.43 mi (665.36 km) |
| Portes-les-Valence to Buggenhout | 424.47 mi (683.11 km) |
| Portes-les-Valence to Chapelle-lez-Herlaimont | 387.45 mi (623.54 km) |
| Portes-les-Valence to Charleroi | 382.41 mi (615.43 km) |
| Portes-les-Valence to Chatelet | 382.22 mi (615.13 km) |
