| Markham to Opwijk | 4,144.11 mi (6,669.29 km) |
| Markham to Ostend | 4,087.64 mi (6,578.41 km) |
| Markham to Oud-Heverlee | 4,166.93 mi (6,706.03 km) |
| Markham to Oud-Turnhout | 4,161.73 mi (6,697.66 km) |
| Markham to Oudenaarde | 4,126.19 mi (6,640.46 km) |
| Markham to Oudenburg | 4,092.12 mi (6,585.63 km) |
| Markham to Oupeye | 4,207.95 mi (6,772.05 km) |
| Markham to Overijse | 4,163.68 mi (6,700.80 km) |
| Markham to Overpelt | 4,181.36 mi (6,729.26 km) |
| Markham to Paal | 4,178.59 mi (6,724.79 km) |
| Markham to Peer | 4,185.72 mi (6,736.26 km) |
| Markham to Pepinster | 4,219.54 mi (6,790.70 km) |
| Markham to Peruwelz | 4,137.11 mi (6,658.04 km) |
| Markham to Perwez | 4,179.90 mi (6,726.90 km) |
| Markham to Philippeville | 4,184.93 mi (6,734.99 km) |
