| Siverek to Opwijk | 1,935.92 mi (3,115.57 km) |
| Siverek to Ostend | 1,993.46 mi (3,208.17 km) |
| Siverek to Oud-Heverlee | 1,913.22 mi (3,079.03 km) |
| Siverek to Oud-Turnhout | 1,908.76 mi (3,071.86 km) |
| Siverek to Oudenaarde | 1,958.64 mi (3,152.12 km) |
| Siverek to Oudenburg | 1,989.38 mi (3,201.60 km) |
| Siverek to Oupeye | 1,869.78 mi (3,009.12 km) |
| Siverek to Overijse | 1,917.99 mi (3,086.71 km) |
| Siverek to Overpelt | 1,888.85 mi (3,039.81 km) |
| Siverek to Paal | 1,895.66 mi (3,050.77 km) |
| Siverek to Peer | 1,885.70 mi (3,034.74 km) |
| Siverek to Pepinster | 1,859.84 mi (2,993.12 km) |
| Siverek to Peruwelz | 1,954.07 mi (3,144.77 km) |
| Siverek to Perwez | 1,903.31 mi (3,063.08 km) |
| Siverek to Philippeville | 1,907.60 mi (3,069.98 km) |
