| Saint-Gregoire to Beyne-Heusay | 371.12 mi (597.26 km) |
| Saint-Gregoire to Bierbeek | 343.63 mi (553.02 km) |
| Saint-Gregoire to Bilzen | 373.43 mi (600.98 km) |
| Saint-Gregoire to Binche | 306.06 mi (492.55 km) |
| Saint-Gregoire to Bissegem | 286.86 mi (461.66 km) |
| Saint-Gregoire to Blankenberge | 305.42 mi (491.52 km) |
| Saint-Gregoire to Blegny | 375.88 mi (604.91 km) |
| Saint-Gregoire to Bocholt | 385.94 mi (621.11 km) |
| Saint-Gregoire to Boechout | 344.92 mi (555.09 km) |
| Saint-Gregoire to Bonheiden | 342.23 mi (550.77 km) |
| Saint-Gregoire to Boom | 338.14 mi (544.18 km) |
| Saint-Gregoire to Boortmeerbeek | 341.58 mi (549.71 km) |
| Saint-Gregoire to Borgerhout | 345.84 mi (556.58 km) |
| Saint-Gregoire to Borgloon | 364.66 mi (586.87 km) |
| Saint-Gregoire to Bornem | 334.05 mi (537.60 km) |
