| Lake in the Hills to Opwijk | 4,140.63 mi (6,663.70 km) |
| Lake in the Hills to Ostend | 4,084.35 mi (6,573.12 km) |
| Lake in the Hills to Oud-Heverlee | 4,163.41 mi (6,700.36 km) |
| Lake in the Hills to Oud-Turnhout | 4,157.66 mi (6,691.11 km) |
| Lake in the Hills to Oudenaarde | 4,123.02 mi (6,635.36 km) |
| Lake in the Hills to Oudenburg | 4,088.84 mi (6,580.36 km) |
| Lake in the Hills to Oupeye | 4,204.20 mi (6,766.01 km) |
| Lake in the Hills to Overijse | 4,160.25 mi (6,695.28 km) |
| Lake in the Hills to Overpelt | 4,177.23 mi (6,722.61 km) |
| Lake in the Hills to Paal | 4,174.70 mi (6,718.54 km) |
| Lake in the Hills to Peer | 4,181.65 mi (6,729.72 km) |
| Lake in the Hills to Pepinster | 4,215.86 mi (6,784.77 km) |
| Lake in the Hills to Peruwelz | 4,134.26 mi (6,653.44 km) |
| Lake in the Hills to Perwez | 4,176.52 mi (6,721.46 km) |
| Lake in the Hills to Philippeville | 4,182.02 mi (6,730.32 km) |
