| Opoczno to Moncalieri | 727.10 mi (1,170.16 km) |
| Opoczno to Mondolfo | 623.82 mi (1,003.93 km) |
| Opoczno to Mondovi | 751.52 mi (1,209.45 km) |
| Opoczno to Monesiglio | 736.92 mi (1,185.97 km) |
| Opoczno to Monfalcone | 493.29 mi (793.87 km) |
| Opoczno to Monopoli | 734.33 mi (1,181.78 km) |
| Opoczno to Monreale | 979.65 mi (1,576.59 km) |
| Opoczno to Monselice | 577.29 mi (929.07 km) |
| Opoczno to Monserrato | 994.98 mi (1,601.26 km) |
| Opoczno to Monsummano | 679.90 mi (1,094.19 km) |
| Opoczno to Montagnana | 586.19 mi (943.38 km) |
| Opoczno to Montale | 670.25 mi (1,078.67 km) |
| Opoczno to Montalto di Castro | 745.47 mi (1,199.72 km) |
| Opoczno to Montalto Uffugo | 851.18 mi (1,369.85 km) |
| Opoczno to Monte Compatri | 751.15 mi (1,208.86 km) |
