| Groslay to Borsbeek | 179.91 mi (289.54 km) |
| Groslay to Boussu | 119.13 mi (191.73 km) |
| Groslay to Braine-l'Alleud | 147.84 mi (237.93 km) |
| Groslay to Braine-le-Chateau | 145.18 mi (233.64 km) |
| Groslay to Braine-le-Comte | 137.07 mi (220.60 km) |
| Groslay to Brasschaat | 185.50 mi (298.53 km) |
| Groslay to Brecht | 192.14 mi (309.21 km) |
| Groslay to Bredene | 157.74 mi (253.86 km) |
| Groslay to Bree | 206.45 mi (332.25 km) |
| Groslay to Bruges | 158.41 mi (254.94 km) |
| Groslay to Brussels | 156.50 mi (251.87 km) |
| Groslay to Buggenhout | 161.68 mi (260.20 km) |
| Groslay to Chapelle-lez-Herlaimont | 133.99 mi (215.64 km) |
| Groslay to Charleroi | 135.09 mi (217.41 km) |
| Groslay to Chatelet | 137.69 mi (221.59 km) |
