| Opoczno to Mozzate | 649.83 mi (1,045.80 km) |
| Opoczno to Muggia | 498.06 mi (801.55 km) |
| Opoczno to Muggio | 643.47 mi (1,035.56 km) |
| Opoczno to Mugnano di Napoli | 778.90 mi (1,253.52 km) |
| Opoczno to Musile di Piave | 531.73 mi (855.73 km) |
| Opoczno to Mussomeli | 1,005.29 mi (1,617.86 km) |
| Opoczno to Naples | 783.15 mi (1,260.36 km) |
| Opoczno to Nardo | 781.16 mi (1,257.15 km) |
| Opoczno to Narni | 712.61 mi (1,146.84 km) |
| Opoczno to Nembro | 618.04 mi (994.63 km) |
| Opoczno to Nepi | 733.35 mi (1,180.22 km) |
| Opoczno to Nerviano | 654.75 mi (1,053.72 km) |
| Opoczno to Nettuno | 774.01 mi (1,245.64 km) |
| Opoczno to Nichelino | 728.72 mi (1,172.77 km) |
| Opoczno to Nicosia | 984.33 mi (1,584.12 km) |
