| Gradignan to Borsbeek | 502.52 mi (808.73 km) |
| Gradignan to Boussu | 441.63 mi (710.74 km) |
| Gradignan to Braine-l'Alleud | 469.17 mi (755.06 km) |
| Gradignan to Braine-le-Chateau | 466.95 mi (751.49 km) |
| Gradignan to Braine-le-Comte | 459.02 mi (738.72 km) |
| Gradignan to Brasschaat | 508.24 mi (817.93 km) |
| Gradignan to Brecht | 514.74 mi (828.39 km) |
| Gradignan to Bredene | 476.14 mi (766.27 km) |
| Gradignan to Bree | 524.40 mi (843.94 km) |
| Gradignan to Bruges | 478.68 mi (770.36 km) |
| Gradignan to Brussels | 478.57 mi (770.19 km) |
| Gradignan to Buggenhout | 484.44 mi (779.63 km) |
| Gradignan to Chapelle-lez-Herlaimont | 454.56 mi (731.55 km) |
| Gradignan to Charleroi | 454.22 mi (731.00 km) |
| Gradignan to Chatelet | 456.24 mi (734.25 km) |
