| Grez-Doiceau to Beyne-Heusay | 42.37 mi (68.19 km) |
| Grez-Doiceau to Bierbeek | 7.50 mi (12.07 km) |
| Grez-Doiceau to Bilzen | 36.84 mi (59.28 km) |
| Grez-Doiceau to Binche | 32.83 mi (52.84 km) |
| Grez-Doiceau to Bissegem | 65.06 mi (104.71 km) |
| Grez-Doiceau to Blankenberge | 79.18 mi (127.42 km) |
| Grez-Doiceau to Blegny | 45.45 mi (73.15 km) |
| Grez-Doiceau to Bocholt | 48.83 mi (78.59 km) |
| Grez-Doiceau to Boechout | 30.30 mi (48.76 km) |
| Grez-Doiceau to Bonheiden | 21.96 mi (35.35 km) |
| Grez-Doiceau to Boom | 28.21 mi (45.40 km) |
| Grez-Doiceau to Boortmeerbeek | 18.23 mi (29.33 km) |
| Grez-Doiceau to Borgerhout | 34.93 mi (56.21 km) |
| Grez-Doiceau to Borgloon | 28.51 mi (45.89 km) |
| Grez-Doiceau to Bornem | 32.48 mi (52.28 km) |
