| Zella-Mehlis to Opwijk | 283.75 mi (456.66 km) |
| Zella-Mehlis to Ostend | 339.39 mi (546.19 km) |
| Zella-Mehlis to Oud-Heverlee | 262.52 mi (422.49 km) |
| Zella-Mehlis to Oud-Turnhout | 251.26 mi (404.37 km) |
| Zella-Mehlis to Oudenaarde | 309.06 mi (497.39 km) |
| Zella-Mehlis to Oudenburg | 335.73 mi (540.31 km) |
| Zella-Mehlis to Oupeye | 219.91 mi (353.91 km) |
| Zella-Mehlis to Overijse | 268.36 mi (431.88 km) |
| Zella-Mehlis to Overpelt | 231.76 mi (372.98 km) |
| Zella-Mehlis to Paal | 241.04 mi (387.92 km) |
| Zella-Mehlis to Peer | 229.48 mi (369.31 km) |
| Zella-Mehlis to Pepinster | 212.71 mi (342.32 km) |
| Zella-Mehlis to Peruwelz | 310.77 mi (500.14 km) |
| Zella-Mehlis to Perwez | 256.36 mi (412.56 km) |
| Zella-Mehlis to Philippeville | 271.02 mi (436.16 km) |
