| Castanet-Tolosan to Borsbeek | 548.89 mi (883.36 km) |
| Castanet-Tolosan to Boussu | 490.01 mi (788.60 km) |
| Castanet-Tolosan to Braine-l'Alleud | 513.07 mi (825.70 km) |
| Castanet-Tolosan to Braine-le-Chateau | 511.98 mi (823.94 km) |
| Castanet-Tolosan to Braine-le-Comte | 504.87 mi (812.51 km) |
| Castanet-Tolosan to Brasschaat | 555.16 mi (893.44 km) |
| Castanet-Tolosan to Brecht | 560.65 mi (902.28 km) |
| Castanet-Tolosan to Bredene | 537.69 mi (865.33 km) |
| Castanet-Tolosan to Bree | 559.80 mi (900.92 km) |
| Castanet-Tolosan to Bruges | 537.62 mi (865.21 km) |
| Castanet-Tolosan to Brussels | 523.86 mi (843.07 km) |
| Castanet-Tolosan to Buggenhout | 532.32 mi (856.68 km) |
| Castanet-Tolosan to Chapelle-lez-Herlaimont | 497.79 mi (801.12 km) |
| Castanet-Tolosan to Charleroi | 495.29 mi (797.09 km) |
| Castanet-Tolosan to Chatelet | 496.40 mi (798.88 km) |
