| Willowick to Opwijk | 3,904.59 mi (6,283.84 km) |
| Willowick to Ostend | 3,847.49 mi (6,191.93 km) |
| Willowick to Oud-Heverlee | 3,927.55 mi (6,320.78 km) |
| Willowick to Oud-Turnhout | 3,924.64 mi (6,316.10 km) |
| Willowick to Oudenaarde | 3,885.46 mi (6,253.04 km) |
| Willowick to Oudenburg | 3,851.91 mi (6,199.04 km) |
| Willowick to Oupeye | 3,969.41 mi (6,388.15 km) |
| Willowick to Overijse | 3,923.93 mi (6,314.96 km) |
| Willowick to Overpelt | 3,944.47 mi (6,348.01 km) |
| Willowick to Paal | 3,940.68 mi (6,341.91 km) |
| Willowick to Peer | 3,948.55 mi (6,354.57 km) |
| Willowick to Pepinster | 3,980.70 mi (6,406.32 km) |
| Willowick to Peruwelz | 3,895.08 mi (6,268.52 km) |
| Willowick to Perwez | 3,939.92 mi (6,340.68 km) |
| Willowick to Philippeville | 3,942.98 mi (6,345.61 km) |
