| Walker Mill to Opwijk | 3,847.90 mi (6,192.60 km) |
| Walker Mill to Ostend | 3,790.28 mi (6,099.87 km) |
| Walker Mill to Oud-Heverlee | 3,870.88 mi (6,229.58 km) |
| Walker Mill to Oud-Turnhout | 3,871.28 mi (6,230.23 km) |
| Walker Mill to Oudenaarde | 3,827.14 mi (6,159.19 km) |
| Walker Mill to Oudenburg | 3,794.58 mi (6,106.79 km) |
| Walker Mill to Oupeye | 3,913.66 mi (6,298.42 km) |
| Walker Mill to Overijse | 3,866.75 mi (6,222.93 km) |
| Walker Mill to Overpelt | 3,891.24 mi (6,262.35 km) |
| Walker Mill to Paal | 3,886.03 mi (6,253.96 km) |
| Walker Mill to Peer | 3,894.90 mi (6,268.24 km) |
| Walker Mill to Pepinster | 3,924.43 mi (6,315.77 km) |
| Walker Mill to Peruwelz | 3,834.79 mi (6,171.50 km) |
| Walker Mill to Perwez | 3,882.29 mi (6,247.94 km) |
| Walker Mill to Philippeville | 3,882.48 mi (6,248.24 km) |
