| Saint-Gregoire to Borsbeek | 346.89 mi (558.26 km) |
| Saint-Gregoire to Boussu | 292.96 mi (471.47 km) |
| Saint-Gregoire to Braine-l'Alleud | 323.40 mi (520.47 km) |
| Saint-Gregoire to Braine-le-Chateau | 319.54 mi (514.25 km) |
| Saint-Gregoire to Braine-le-Comte | 311.58 mi (501.43 km) |
| Saint-Gregoire to Brasschaat | 350.83 mi (564.60 km) |
| Saint-Gregoire to Brecht | 358.17 mi (576.42 km) |
| Saint-Gregoire to Bredene | 297.84 mi (479.32 km) |
| Saint-Gregoire to Bree | 384.76 mi (619.20 km) |
| Saint-Gregoire to Bruges | 304.55 mi (490.13 km) |
| Saint-Gregoire to Brussels | 328.64 mi (528.90 km) |
| Saint-Gregoire to Buggenhout | 328.91 mi (529.33 km) |
| Saint-Gregoire to Chapelle-lez-Herlaimont | 312.76 mi (503.34 km) |
| Saint-Gregoire to Charleroi | 316.46 mi (509.29 km) |
| Saint-Gregoire to Chatelet | 319.74 mi (514.57 km) |
