| Portici to Lubbeek | 830.57 mi (1,336.67 km) |
| Portici to Lummen | 827.03 mi (1,330.97 km) |
| Portici to Maaseik | 819.45 mi (1,318.78 km) |
| Portici to Machelen | 842.86 mi (1,356.45 km) |
| Portici to Maldegem | 885.88 mi (1,425.68 km) |
| Portici to Malmedy | 774.47 mi (1,246.40 km) |
| Portici to Manage | 826.40 mi (1,329.96 km) |
| Portici to Marche-en-Famenne | 780.88 mi (1,256.70 km) |
| Portici to Mariakerke | 872.38 mi (1,403.96 km) |
| Portici to Mechelen | 848.10 mi (1,364.89 km) |
| Portici to Mechelen-aan-de-Maas | 815.38 mi (1,312.23 km) |
| Portici to Meerhout | 838.41 mi (1,349.29 km) |
| Portici to Meise | 846.89 mi (1,362.94 km) |
| Portici to Melle | 865.07 mi (1,392.20 km) |
| Portici to Melsele | 863.94 mi (1,390.38 km) |
