| Ottersberg to Opwijk | 257.39 mi (414.22 km) |
| Ottersberg to Ostend | 293.98 mi (473.11 km) |
| Ottersberg to Oud-Heverlee | 246.81 mi (397.20 km) |
| Ottersberg to Oud-Turnhout | 215.13 mi (346.22 km) |
| Ottersberg to Oudenaarde | 282.66 mi (454.90 km) |
| Ottersberg to Oudenburg | 292.35 mi (470.48 km) |
| Ottersberg to Oupeye | 222.79 mi (358.54 km) |
| Ottersberg to Overijse | 253.47 mi (407.92 km) |
| Ottersberg to Overpelt | 204.83 mi (329.64 km) |
| Ottersberg to Paal | 220.87 mi (355.45 km) |
| Ottersberg to Peer | 207.48 mi (333.91 km) |
| Ottersberg to Pepinster | 225.54 mi (362.97 km) |
| Ottersberg to Peruwelz | 297.20 mi (478.30 km) |
| Ottersberg to Perwez | 251.87 mi (405.34 km) |
| Ottersberg to Philippeville | 281.03 mi (452.27 km) |
