| Serta to Opwijk | 972.27 mi (1,564.72 km) |
| Serta to Ostend | 950.55 mi (1,529.76 km) |
| Serta to Oud-Heverlee | 979.92 mi (1,577.02 km) |
| Serta to Oud-Turnhout | 1,013.58 mi (1,631.20 km) |
| Serta to Oudenaarde | 949.37 mi (1,527.86 km) |
| Serta to Oudenburg | 950.41 mi (1,529.53 km) |
| Serta to Oupeye | 1,004.15 mi (1,616.02 km) |
| Serta to Overijse | 973.39 mi (1,566.52 km) |
| Serta to Overpelt | 1,021.64 mi (1,644.17 km) |
| Serta to Paal | 1,005.48 mi (1,618.16 km) |
| Serta to Peer | 1,018.66 mi (1,639.37 km) |
| Serta to Pepinster | 1,003.06 mi (1,614.26 km) |
| Serta to Peruwelz | 931.61 mi (1,499.29 km) |
| Serta to Perwez | 974.11 mi (1,567.68 km) |
| Serta to Philippeville | 945.16 mi (1,521.09 km) |
