| Somero to Opwijk | 998.08 mi (1,606.26 km) |
| Somero to Ostend | 1,021.10 mi (1,643.30 km) |
| Somero to Oud-Heverlee | 991.54 mi (1,595.73 km) |
| Somero to Oud-Turnhout | 957.15 mi (1,540.39 km) |
| Somero to Oudenaarde | 1,020.79 mi (1,642.80 km) |
| Somero to Oudenburg | 1,020.91 mi (1,643.00 km) |
| Somero to Oupeye | 971.39 mi (1,563.30 km) |
| Somero to Overijse | 997.92 mi (1,606.00 km) |
| Somero to Overpelt | 950.32 mi (1,529.40 km) |
| Somero to Paal | 966.52 mi (1,555.46 km) |
| Somero to Peer | 953.76 mi (1,534.93 km) |
| Somero to Pepinster | 974.41 mi (1,568.17 km) |
| Somero to Peruwelz | 1,038.76 mi (1,671.73 km) |
| Somero to Perwez | 998.59 mi (1,607.08 km) |
| Somero to Philippeville | 1,028.76 mi (1,655.63 km) |
