| Selfoss to Opwijk | 1,279.79 mi (2,059.63 km) |
| Selfoss to Ostend | 1,233.19 mi (1,984.63 km) |
| Selfoss to Oud-Heverlee | 1,299.66 mi (2,091.59 km) |
| Selfoss to Oud-Turnhout | 1,281.10 mi (2,061.73 km) |
| Selfoss to Oudenaarde | 1,271.50 mi (2,046.28 km) |
| Selfoss to Oudenburg | 1,237.61 mi (1,991.74 km) |
| Selfoss to Oupeye | 1,331.93 mi (2,143.54 km) |
| Selfoss to Overijse | 1,299.02 mi (2,090.57 km) |
| Selfoss to Overpelt | 1,297.95 mi (2,088.85 km) |
| Selfoss to Paal | 1,301.34 mi (2,094.31 km) |
| Selfoss to Peer | 1,303.53 mi (2,097.83 km) |
| Selfoss to Pepinster | 1,344.32 mi (2,163.48 km) |
| Selfoss to Peruwelz | 1,289.91 mi (2,075.92 km) |
| Selfoss to Perwez | 1,315.16 mi (2,116.54 km) |
| Selfoss to Philippeville | 1,332.25 mi (2,144.05 km) |
