| Pontecorvo to Oerlinghausen | 762.99 mi (1,227.91 km) |
| Pontecorvo to Oestrich-Winkel | 649.66 mi (1,045.53 km) |
| Pontecorvo to Offenburg | 558.89 mi (899.44 km) |
| Pontecorvo to Oftersheim | 599.08 mi (964.13 km) |
| Pontecorvo to Ohrdruf | 662.03 mi (1,065.43 km) |
| Pontecorvo to Ohringen | 571.42 mi (919.60 km) |
| Pontecorvo to Olbernhau | 636.14 mi (1,023.77 km) |
| Pontecorvo to Olching | 479.49 mi (771.66 km) |
| Pontecorvo to Oldenburg | 845.96 mi (1,361.44 km) |
| Pontecorvo to Oldenburg in Holstein | 896.13 mi (1,442.18 km) |
| Pontecorvo to Olfen | 768.06 mi (1,236.07 km) |
| Pontecorvo to Olpe | 716.03 mi (1,152.33 km) |
| Pontecorvo to Olsberg | 725.97 mi (1,168.33 km) |
| Pontecorvo to Oranienburg | 780.45 mi (1,256.01 km) |
| Pontecorvo to Ortenberg | 652.92 mi (1,050.77 km) |
