| Montecorvino Rovella to Oerlinghausen | 833.96 mi (1,342.13 km) |
| Montecorvino Rovella to Oestrich-Winkel | 725.79 mi (1,168.05 km) |
| Montecorvino Rovella to Offenburg | 638.38 mi (1,027.38 km) |
| Montecorvino Rovella to Oftersheim | 675.06 mi (1,086.40 km) |
| Montecorvino Rovella to Ohrdruf | 728.84 mi (1,172.95 km) |
| Montecorvino Rovella to Ohringen | 645.18 mi (1,038.31 km) |
| Montecorvino Rovella to Olbernhau | 693.17 mi (1,115.56 km) |
| Montecorvino Rovella to Olching | 548.68 mi (883.02 km) |
| Montecorvino Rovella to Oldenburg | 916.21 mi (1,474.50 km) |
| Montecorvino Rovella to Oldenburg in Holstein | 958.54 mi (1,542.63 km) |
| Montecorvino Rovella to Olfen | 842.38 mi (1,355.69 km) |
| Montecorvino Rovella to Olpe | 790.60 mi (1,272.36 km) |
| Montecorvino Rovella to Olsberg | 798.42 mi (1,284.93 km) |
| Montecorvino Rovella to Oranienburg | 836.91 mi (1,346.87 km) |
| Montecorvino Rovella to Ortenberg | 725.66 mi (1,167.84 km) |
