| West Monroe to Opwijk | 4,765.16 mi (7,668.78 km) |
| West Monroe to Ostend | 4,707.97 mi (7,576.75 km) |
| West Monroe to Oud-Heverlee | 4,788.13 mi (7,705.75 km) |
| West Monroe to Oud-Turnhout | 4,785.52 mi (7,701.56 km) |
| West Monroe to Oudenaarde | 4,745.83 mi (7,637.68 km) |
| West Monroe to Oudenburg | 4,712.38 mi (7,583.84 km) |
| West Monroe to Oupeye | 4,830.10 mi (7,773.29 km) |
| West Monroe to Overijse | 4,784.45 mi (7,699.83 km) |
| West Monroe to Overpelt | 4,805.37 mi (7,733.49 km) |
| West Monroe to Paal | 4,801.46 mi (7,727.20 km) |
| West Monroe to Peer | 4,809.41 mi (7,740.00 km) |
| West Monroe to Pepinster | 4,841.34 mi (7,791.39 km) |
| West Monroe to Peruwelz | 4,755.20 mi (7,652.76 km) |
| West Monroe to Perwez | 4,800.39 mi (7,725.49 km) |
| West Monroe to Philippeville | 4,803.10 mi (7,729.84 km) |
