| Rio de Mouro to Opwijk | 1,068.06 mi (1,718.88 km) |
| Rio de Mouro to Ostend | 1,045.36 mi (1,682.35 km) |
| Rio de Mouro to Oud-Heverlee | 1,076.02 mi (1,731.68 km) |
| Rio de Mouro to Oud-Turnhout | 1,109.50 mi (1,785.56 km) |
| Rio de Mouro to Oudenaarde | 1,044.93 mi (1,681.66 km) |
| Rio de Mouro to Oudenburg | 1,045.32 mi (1,682.28 km) |
| Rio de Mouro to Oupeye | 1,100.67 mi (1,771.35 km) |
| Rio de Mouro to Overijse | 1,069.47 mi (1,721.15 km) |
| Rio de Mouro to Overpelt | 1,117.80 mi (1,798.92 km) |
| Rio de Mouro to Paal | 1,101.66 mi (1,772.94 km) |
| Rio de Mouro to Peer | 1,114.88 mi (1,794.23 km) |
| Rio de Mouro to Pepinster | 1,099.69 mi (1,769.78 km) |
| Rio de Mouro to Peruwelz | 1,027.43 mi (1,653.48 km) |
| Rio de Mouro to Perwez | 1,070.40 mi (1,722.65 km) |
| Rio de Mouro to Philippeville | 1,041.60 mi (1,676.29 km) |
