| Two Rivers to Opwijk | 4,020.10 mi (6,469.72 km) |
| Two Rivers to Ostend | 3,964.11 mi (6,379.61 km) |
| Two Rivers to Oud-Heverlee | 4,042.81 mi (6,506.27 km) |
| Two Rivers to Oud-Turnhout | 4,036.30 mi (6,495.79 km) |
| Two Rivers to Oudenaarde | 4,002.93 mi (6,442.09 km) |
| Two Rivers to Oudenburg | 3,968.62 mi (6,386.87 km) |
| Two Rivers to Oupeye | 4,083.27 mi (6,571.38 km) |
| Two Rivers to Overijse | 4,039.78 mi (6,501.40 km) |
| Two Rivers to Overpelt | 4,055.78 mi (6,527.15 km) |
| Two Rivers to Paal | 4,053.59 mi (6,523.62 km) |
| Two Rivers to Peer | 4,060.28 mi (6,534.39 km) |
| Two Rivers to Pepinster | 4,095.01 mi (6,590.28 km) |
| Two Rivers to Peruwelz | 4,014.60 mi (6,460.88 km) |
| Two Rivers to Perwez | 4,056.10 mi (6,527.66 km) |
| Two Rivers to Philippeville | 4,062.28 mi (6,537.61 km) |
