| Meram to Orbetello | 1,161.92 mi (1,869.93 km) |
| Meram to Oria | 813.07 mi (1,308.52 km) |
| Meram to Oristano | 1,286.87 mi (2,071.02 km) |
| Meram to Orta Nova | 921.20 mi (1,482.52 km) |
| Meram to Orte | 1,103.13 mi (1,775.32 km) |
| Meram to Ortona | 1,000.85 mi (1,610.71 km) |
| Meram to Orvieto | 1,120.15 mi (1,802.71 km) |
| Meram to Orzinuovi | 1,268.89 mi (2,042.08 km) |
| Meram to Osimo | 1,064.36 mi (1,712.92 km) |
| Meram to Ospitaletto | 1,265.47 mi (2,036.58 km) |
| Meram to Ostuni | 818.14 mi (1,316.67 km) |
| Meram to Ottaviano | 980.17 mi (1,577.43 km) |
| Meram to Ovada | 1,316.60 mi (2,118.87 km) |
| Meram to Ozieri | 1,265.05 mi (2,035.90 km) |
| Meram to Paceco | 1,082.15 mi (1,741.55 km) |
