| Roma to Opwijk | 5,352.89 mi (8,614.64 km) |
| Roma to Ostend | 5,295.78 mi (8,522.74 km) |
| Roma to Oud-Heverlee | 5,375.84 mi (8,651.58 km) |
| Roma to Oud-Turnhout | 5,372.83 mi (8,646.73 km) |
| Roma to Oudenaarde | 5,333.75 mi (8,583.84 km) |
| Roma to Oudenburg | 5,300.20 mi (8,529.85 km) |
| Roma to Oupeye | 5,417.69 mi (8,718.92 km) |
| Roma to Overijse | 5,372.23 mi (8,645.76 km) |
| Roma to Overpelt | 5,392.64 mi (8,678.62 km) |
| Roma to Paal | 5,388.92 mi (8,672.63 km) |
| Roma to Peer | 5,396.74 mi (8,685.22 km) |
| Roma to Pepinster | 5,428.99 mi (8,737.11 km) |
| Roma to Peruwelz | 5,343.32 mi (8,599.24 km) |
| Roma to Perwez | 5,388.21 mi (8,671.49 km) |
| Roma to Philippeville | 5,391.22 mi (8,676.33 km) |
