| Derik to Opwijk | 1,993.06 mi (3,207.51 km) |
| Derik to Ostend | 2,050.57 mi (3,300.07 km) |
| Derik to Oud-Heverlee | 1,970.38 mi (3,171.02 km) |
| Derik to Oud-Turnhout | 1,965.67 mi (3,163.44 km) |
| Derik to Oudenaarde | 2,015.86 mi (3,244.22 km) |
| Derik to Oudenburg | 2,046.50 mi (3,293.53 km) |
| Derik to Oupeye | 1,926.92 mi (3,101.07 km) |
| Derik to Overijse | 1,975.18 mi (3,178.75 km) |
| Derik to Overpelt | 1,945.76 mi (3,131.40 km) |
| Derik to Paal | 1,952.68 mi (3,142.54 km) |
| Derik to Peer | 1,942.65 mi (3,126.40 km) |
| Derik to Pepinster | 1,917.03 mi (3,085.16 km) |
| Derik to Peruwelz | 2,011.44 mi (3,237.10 km) |
| Derik to Perwez | 1,960.55 mi (3,155.20 km) |
| Derik to Philippeville | 1,965.04 mi (3,162.42 km) |
