| Glen Cove to Opwijk | 3,627.05 mi (5,837.17 km) |
| Glen Cove to Ostend | 3,569.42 mi (5,744.43 km) |
| Glen Cove to Oud-Heverlee | 3,650.02 mi (5,874.14 km) |
| Glen Cove to Oud-Turnhout | 3,650.50 mi (5,874.92 km) |
| Glen Cove to Oudenaarde | 3,606.26 mi (5,803.71 km) |
| Glen Cove to Oudenburg | 3,573.72 mi (5,751.34 km) |
| Glen Cove to Oupeye | 3,692.81 mi (5,943.01 km) |
| Glen Cove to Overijse | 3,645.88 mi (5,867.48 km) |
| Glen Cove to Overpelt | 3,670.47 mi (5,907.05 km) |
| Glen Cove to Paal | 3,665.22 mi (5,898.60 km) |
| Glen Cove to Peer | 3,674.11 mi (5,912.91 km) |
| Glen Cove to Pepinster | 3,703.58 mi (5,960.34 km) |
| Glen Cove to Peruwelz | 3,613.88 mi (5,815.98 km) |
| Glen Cove to Perwez | 3,661.41 mi (5,892.47 km) |
| Glen Cove to Philippeville | 3,661.56 mi (5,892.71 km) |
