| Boucau to Menen | 546.84 mi (880.05 km) |
| Boucau to Merchtem | 579.63 mi (932.82 km) |
| Boucau to Merelbeke | 571.60 mi (919.90 km) |
| Boucau to Merksem | 600.67 mi (966.68 km) |
| Boucau to Merksplas | 617.35 mi (993.53 km) |
| Boucau to Mettet | 551.39 mi (887.38 km) |
| Boucau to Meulebeke | 559.54 mi (900.49 km) |
| Boucau to Middelkerke | 566.15 mi (911.13 km) |
| Boucau to Mol | 612.31 mi (985.42 km) |
| Boucau to Mons | 542.50 mi (873.07 km) |
| Boucau to Montignies-le-Tilleul | 548.49 mi (882.70 km) |
| Boucau to Moorslede | 551.72 mi (887.91 km) |
| Boucau to Moortebeek | 575.23 mi (925.75 km) |
| Boucau to Morlanwelz-Mariemont | 548.90 mi (883.36 km) |
| Boucau to Mortsel | 596.66 mi (960.22 km) |
