| Portes-les-Valence to Menen | 417.17 mi (671.37 km) |
| Portes-les-Valence to Merchtem | 422.06 mi (679.24 km) |
| Portes-les-Valence to Merelbeke | 426.50 mi (686.38 km) |
| Portes-les-Valence to Merksem | 440.55 mi (708.99 km) |
| Portes-les-Valence to Merksplas | 448.65 mi (722.03 km) |
| Portes-les-Valence to Mettet | 376.41 mi (605.78 km) |
| Portes-les-Valence to Meulebeke | 426.22 mi (685.93 km) |
| Portes-les-Valence to Middelkerke | 446.27 mi (718.20 km) |
| Portes-les-Valence to Mol | 436.12 mi (701.87 km) |
| Portes-les-Valence to Mons | 387.71 mi (623.96 km) |
| Portes-les-Valence to Montignies-le-Tilleul | 381.39 mi (613.79 km) |
| Portes-les-Valence to Moorslede | 424.13 mi (682.57 km) |
| Portes-les-Valence to Moortebeek | 414.02 mi (666.31 km) |
| Portes-les-Valence to Morlanwelz-Mariemont | 386.47 mi (621.96 km) |
| Portes-les-Valence to Mortsel | 435.24 mi (700.45 km) |
