| Portage to Opwijk | 4,036.75 mi (6,496.52 km) |
| Portage to Ostend | 3,980.13 mi (6,405.41 km) |
| Portage to Oud-Heverlee | 4,059.61 mi (6,533.31 km) |
| Portage to Oud-Turnhout | 4,054.87 mi (6,525.67 km) |
| Portage to Oudenaarde | 4,018.59 mi (6,467.29 km) |
| Portage to Oudenburg | 3,984.60 mi (6,412.60 km) |
| Portage to Oupeye | 4,100.81 mi (6,599.62 km) |
| Portage to Overijse | 4,056.28 mi (6,527.96 km) |
| Portage to Overpelt | 4,074.54 mi (6,557.34 km) |
| Portage to Paal | 4,071.56 mi (6,552.55 km) |
| Portage to Peer | 4,078.84 mi (6,564.26 km) |
| Portage to Pepinster | 4,112.34 mi (6,618.18 km) |
| Portage to Peruwelz | 4,029.25 mi (6,484.46 km) |
| Portage to Perwez | 4,072.46 mi (6,553.99 km) |
| Portage to Philippeville | 4,077.10 mi (6,561.47 km) |
