| Sint-Martens-Lennik to Opwijk | 11.61 mi (18.68 km) |
| Sint-Martens-Lennik to Ostend | 61.05 mi (98.25 km) |
| Sint-Martens-Lennik to Oud-Heverlee | 22.67 mi (36.49 km) |
| Sint-Martens-Lennik to Oud-Turnhout | 50.83 mi (81.81 km) |
| Sint-Martens-Lennik to Oudenaarde | 24.25 mi (39.03 km) |
| Sint-Martens-Lennik to Oudenburg | 56.59 mi (91.07 km) |
| Sint-Martens-Lennik to Oupeye | 65.57 mi (105.53 km) |
| Sint-Martens-Lennik to Overijse | 16.78 mi (27.01 km) |
| Sint-Martens-Lennik to Overpelt | 62.14 mi (100.00 km) |
| Sint-Martens-Lennik to Paal | 47.52 mi (76.47 km) |
| Sint-Martens-Lennik to Peer | 61.21 mi (98.50 km) |
| Sint-Martens-Lennik to Pepinster | 74.72 mi (120.25 km) |
| Sint-Martens-Lennik to Peruwelz | 31.61 mi (50.87 km) |
| Sint-Martens-Lennik to Perwez | 31.53 mi (50.74 km) |
| Sint-Martens-Lennik to Philippeville | 45.03 mi (72.47 km) |
