| North Merrick to Opwijk | 3,632.34 mi (5,845.68 km) |
| North Merrick to Ostend | 3,574.70 mi (5,752.93 km) |
| North Merrick to Oud-Heverlee | 3,655.31 mi (5,882.65 km) |
| North Merrick to Oud-Turnhout | 3,655.93 mi (5,883.65 km) |
| North Merrick to Oudenaarde | 3,611.49 mi (5,812.12 km) |
| North Merrick to Oudenburg | 3,578.99 mi (5,759.83 km) |
| North Merrick to Oupeye | 3,698.13 mi (5,951.57 km) |
| North Merrick to Overijse | 3,651.15 mi (5,875.96 km) |
| North Merrick to Overpelt | 3,675.90 mi (5,915.78 km) |
| North Merrick to Paal | 3,670.59 mi (5,907.24 km) |
| North Merrick to Peer | 3,679.52 mi (5,921.62 km) |
| North Merrick to Pepinster | 3,708.88 mi (5,968.86 km) |
| North Merrick to Peruwelz | 3,619.03 mi (5,824.26 km) |
| North Merrick to Perwez | 3,666.66 mi (5,900.92 km) |
| North Merrick to Philippeville | 3,666.69 mi (5,900.96 km) |
