| Reggio Emilia to Opwijk | 525.84 mi (846.26 km) |
| Reggio Emilia to Ostend | 574.39 mi (924.38 km) |
| Reggio Emilia to Oud-Heverlee | 505.95 mi (814.25 km) |
| Reggio Emilia to Oud-Turnhout | 526.14 mi (846.75 km) |
| Reggio Emilia to Oudenaarde | 535.41 mi (861.66 km) |
| Reggio Emilia to Oudenburg | 569.88 mi (917.13 km) |
| Reggio Emilia to Oupeye | 475.32 mi (764.95 km) |
| Reggio Emilia to Overijse | 506.56 mi (815.23 km) |
| Reggio Emilia to Overpelt | 510.57 mi (821.68 km) |
| Reggio Emilia to Paal | 505.53 mi (813.58 km) |
| Reggio Emilia to Peer | 504.75 mi (812.32 km) |
| Reggio Emilia to Pepinster | 463.01 mi (745.15 km) |
| Reggio Emilia to Peruwelz | 518.53 mi (834.49 km) |
| Reggio Emilia to Perwez | 490.42 mi (789.25 km) |
| Reggio Emilia to Philippeville | 474.21 mi (763.16 km) |
