| Opmeer to Manerbio | 558.09 mi (898.15 km) |
| Opmeer to Manfredonia | 919.73 mi (1,480.16 km) |
| Opmeer to Maniago | 569.89 mi (917.16 km) |
| Opmeer to Mantova | 584.32 mi (940.37 km) |
| Opmeer to Maranello | 625.14 mi (1,006.06 km) |
| Opmeer to Marano di Napoli | 923.17 mi (1,485.70 km) |
| Opmeer to Marano Vicentino | 564.81 mi (908.97 km) |
| Opmeer to Marcianise | 917.42 mi (1,476.44 km) |
| Opmeer to Marcon | 594.45 mi (956.68 km) |
| Opmeer to Mareno di Piave | 578.96 mi (931.75 km) |
| Opmeer to Margherita di Savoia | 941.72 mi (1,515.55 km) |
| Opmeer to Mariano Comense | 519.82 mi (836.56 km) |
| Opmeer to Marigliano | 927.02 mi (1,491.89 km) |
| Opmeer to Marino | 836.55 mi (1,346.30 km) |
| Opmeer to Marostica | 567.29 mi (912.96 km) |
