| Opatija to Lubbeek | 580.04 mi (933.49 km) |
| Opatija to Lummen | 572.21 mi (920.89 km) |
| Opatija to Maaseik | 558.33 mi (898.54 km) |
| Opatija to Machelen | 595.30 mi (958.04 km) |
| Opatija to Maldegem | 642.37 mi (1,033.80 km) |
| Opatija to Malmedy | 519.75 mi (836.45 km) |
| Opatija to Manage | 586.30 mi (943.56 km) |
| Opatija to Marche-en-Famenne | 535.27 mi (861.44 km) |
| Opatija to Mariakerke | 628.71 mi (1,011.81 km) |
| Opatija to Mechelen | 598.65 mi (963.43 km) |
| Opatija to Mechelen-aan-de-Maas | 556.18 mi (895.08 km) |
| Opatija to Meerhout | 582.73 mi (937.81 km) |
| Opatija to Meise | 599.87 mi (965.40 km) |
| Opatija to Melle | 621.42 mi (1,000.07 km) |
| Opatija to Melsele | 613.61 mi (987.51 km) |
