| Portici to Menen | 873.79 mi (1,406.23 km) |
| Portici to Merchtem | 851.40 mi (1,370.20 km) |
| Portici to Merelbeke | 866.46 mi (1,394.43 km) |
| Portici to Merksem | 860.95 mi (1,385.56 km) |
| Portici to Merksplas | 856.98 mi (1,379.18 km) |
| Portici to Mettet | 804.90 mi (1,295.36 km) |
| Portici to Meulebeke | 876.93 mi (1,411.28 km) |
| Portici to Middelkerke | 902.56 mi (1,452.53 km) |
| Portici to Mol | 840.39 mi (1,352.48 km) |
| Portici to Mons | 831.84 mi (1,338.71 km) |
| Portici to Montignies-le-Tilleul | 815.98 mi (1,313.19 km) |
| Portici to Moorslede | 880.38 mi (1,416.84 km) |
| Portici to Moortebeek | 842.49 mi (1,355.85 km) |
| Portici to Morlanwelz-Mariemont | 823.75 mi (1,325.70 km) |
| Portici to Mortsel | 856.09 mi (1,377.75 km) |
