| Opovo to Manerbio | 501.36 mi (806.86 km) |
| Opovo to Manfredonia | 327.36 mi (526.83 km) |
| Opovo to Maniago | 380.54 mi (612.42 km) |
| Opovo to Mantova | 469.86 mi (756.16 km) |
| Opovo to Maranello | 470.02 mi (756.43 km) |
| Opovo to Marano di Napoli | 426.40 mi (686.22 km) |
| Opovo to Marano Vicentino | 438.72 mi (706.05 km) |
| Opovo to Marcianise | 415.62 mi (668.87 km) |
| Opovo to Marcon | 396.49 mi (638.09 km) |
| Opovo to Mareno di Piave | 395.19 mi (636.00 km) |
| Opovo to Margherita di Savoia | 333.51 mi (536.73 km) |
| Opovo to Mariano Comense | 547.25 mi (880.71 km) |
| Opovo to Marigliano | 414.90 mi (667.72 km) |
| Opovo to Marino | 450.68 mi (725.30 km) |
| Opovo to Marostica | 428.19 mi (689.10 km) |
