| Bad Salzdetfurth to Opwijk | 261.66 mi (421.10 km) |
| Bad Salzdetfurth to Ostend | 309.32 mi (497.80 km) |
| Bad Salzdetfurth to Oud-Heverlee | 245.22 mi (394.64 km) |
| Bad Salzdetfurth to Oud-Turnhout | 221.34 mi (356.21 km) |
| Bad Salzdetfurth to Oudenaarde | 288.31 mi (463.99 km) |
| Bad Salzdetfurth to Oudenburg | 306.64 mi (493.49 km) |
| Bad Salzdetfurth to Oupeye | 210.27 mi (338.39 km) |
| Bad Salzdetfurth to Overijse | 251.92 mi (405.43 km) |
| Bad Salzdetfurth to Overpelt | 205.42 mi (330.59 km) |
| Bad Salzdetfurth to Paal | 219.49 mi (353.24 km) |
| Bad Salzdetfurth to Peer | 205.82 mi (331.23 km) |
| Bad Salzdetfurth to Pepinster | 208.52 mi (335.59 km) |
| Bad Salzdetfurth to Peruwelz | 297.43 mi (478.67 km) |
| Bad Salzdetfurth to Perwez | 245.22 mi (394.64 km) |
| Bad Salzdetfurth to Philippeville | 269.41 mi (433.57 km) |
