| Castelnau-le-Lez to Menen | 495.96 mi (798.18 km) |
| Castelnau-le-Lez to Merchtem | 506.68 mi (815.42 km) |
| Castelnau-le-Lez to Merelbeke | 508.79 mi (818.82 km) |
| Castelnau-le-Lez to Merksem | 526.12 mi (846.70 km) |
| Castelnau-le-Lez to Merksplas | 535.96 mi (862.54 km) |
| Castelnau-le-Lez to Mettet | 463.07 mi (745.23 km) |
| Castelnau-le-Lez to Meulebeke | 506.08 mi (814.46 km) |
| Castelnau-le-Lez to Middelkerke | 523.94 mi (843.20 km) |
| Castelnau-le-Lez to Mol | 524.47 mi (844.05 km) |
| Castelnau-le-Lez to Mons | 470.75 mi (757.59 km) |
| Castelnau-le-Lez to Montignies-le-Tilleul | 466.68 mi (751.05 km) |
| Castelnau-le-Lez to Moorslede | 502.71 mi (809.04 km) |
| Castelnau-le-Lez to Moortebeek | 499.12 mi (803.26 km) |
| Castelnau-le-Lez to Morlanwelz-Mariemont | 471.00 mi (758.00 km) |
| Castelnau-le-Lez to Mortsel | 520.92 mi (838.35 km) |
