| Opole to Lubbeek | 571.47 mi (919.69 km) |
| Opole to Lummen | 555.49 mi (893.98 km) |
| Opole to Maaseik | 529.77 mi (852.58 km) |
| Opole to Machelen | 588.95 mi (947.82 km) |
| Opole to Maldegem | 631.44 mi (1,016.20 km) |
| Opole to Malmedy | 522.98 mi (841.65 km) |
| Opole to Manage | 600.29 mi (966.07 km) |
| Opole to Marche-en-Famenne | 554.64 mi (892.60 km) |
| Opole to Mariakerke | 621.33 mi (999.93 km) |
| Opole to Mechelen | 586.59 mi (944.02 km) |
| Opole to Mechelen-aan-de-Maas | 533.62 mi (858.77 km) |
| Opole to Meerhout | 560.16 mi (901.49 km) |
| Opole to Meise | 593.34 mi (954.89 km) |
| Opole to Melle | 616.23 mi (991.73 km) |
| Opole to Melsele | 594.70 mi (957.07 km) |
