| Friedrichsdorf to Opwijk | 201.44 mi (324.19 km) |
| Friedrichsdorf to Ostend | 258.87 mi (416.61 km) |
| Friedrichsdorf to Oud-Heverlee | 178.93 mi (287.96 km) |
| Friedrichsdorf to Oud-Turnhout | 175.72 mi (282.79 km) |
| Friedrichsdorf to Oudenaarde | 224.97 mi (362.06 km) |
| Friedrichsdorf to Oudenburg | 254.82 mi (410.10 km) |
| Friedrichsdorf to Oupeye | 135.40 mi (217.90 km) |
| Friedrichsdorf to Overijse | 184.02 mi (296.15 km) |
| Friedrichsdorf to Overpelt | 155.78 mi (250.70 km) |
| Friedrichsdorf to Paal | 161.23 mi (259.48 km) |
| Friedrichsdorf to Peer | 152.03 mi (244.67 km) |
| Friedrichsdorf to Pepinster | 126.14 mi (203.00 km) |
| Friedrichsdorf to Peruwelz | 223.44 mi (359.60 km) |
| Friedrichsdorf to Perwez | 170.20 mi (273.91 km) |
| Friedrichsdorf to Philippeville | 180.79 mi (290.95 km) |
