| Mercerville to Opwijk | 3,698.01 mi (5,951.37 km) |
| Mercerville to Ostend | 3,640.39 mi (5,858.64 km) |
| Mercerville to Oud-Heverlee | 3,720.99 mi (5,988.35 km) |
| Mercerville to Oud-Turnhout | 3,721.45 mi (5,989.09 km) |
| Mercerville to Oudenaarde | 3,677.23 mi (5,917.93 km) |
| Mercerville to Oudenburg | 3,644.68 mi (5,865.55 km) |
| Mercerville to Oupeye | 3,763.77 mi (6,057.21 km) |
| Mercerville to Overijse | 3,716.85 mi (5,981.69 km) |
| Mercerville to Overpelt | 3,741.41 mi (6,021.22 km) |
| Mercerville to Paal | 3,736.17 mi (6,012.78 km) |
| Mercerville to Peer | 3,745.06 mi (6,027.09 km) |
| Mercerville to Pepinster | 3,774.54 mi (6,074.54 km) |
| Mercerville to Peruwelz | 3,684.86 mi (5,930.21 km) |
| Mercerville to Perwez | 3,732.38 mi (6,006.69 km) |
| Mercerville to Philippeville | 3,732.54 mi (6,006.94 km) |
