| Castelnaudary to Beyne-Heusay | 533.37 mi (858.38 km) |
| Castelnaudary to Bierbeek | 535.75 mi (862.20 km) |
| Castelnaudary to Bilzen | 547.65 mi (881.36 km) |
| Castelnaudary to Binche | 500.29 mi (805.14 km) |
| Castelnaudary to Bissegem | 521.48 mi (839.24 km) |
| Castelnaudary to Blankenberge | 554.16 mi (891.83 km) |
| Castelnaudary to Blegny | 537.89 mi (865.65 km) |
| Castelnaudary to Bocholt | 568.50 mi (914.92 km) |
| Castelnaudary to Boechout | 553.90 mi (891.42 km) |
| Castelnaudary to Bonheiden | 546.57 mi (879.62 km) |
| Castelnaudary to Boom | 548.27 mi (882.35 km) |
| Castelnaudary to Boortmeerbeek | 543.56 mi (874.78 km) |
| Castelnaudary to Borgerhout | 557.63 mi (897.42 km) |
| Castelnaudary to Borgloon | 541.00 mi (870.65 km) |
| Castelnaudary to Bornem | 548.15 mi (882.15 km) |
