| Grevesmuhlen to Opwijk | 355.77 mi (572.56 km) |
| Grevesmuhlen to Ostend | 391.30 mi (629.74 km) |
| Grevesmuhlen to Oud-Heverlee | 345.00 mi (555.23 km) |
| Grevesmuhlen to Oud-Turnhout | 313.52 mi (504.56 km) |
| Grevesmuhlen to Oudenaarde | 380.99 mi (613.15 km) |
| Grevesmuhlen to Oudenburg | 389.84 mi (627.39 km) |
| Grevesmuhlen to Oupeye | 319.39 mi (514.01 km) |
| Grevesmuhlen to Overijse | 351.69 mi (565.99 km) |
| Grevesmuhlen to Overpelt | 303.00 mi (487.64 km) |
| Grevesmuhlen to Paal | 318.98 mi (513.35 km) |
| Grevesmuhlen to Peer | 305.50 mi (491.65 km) |
| Grevesmuhlen to Pepinster | 321.20 mi (516.92 km) |
| Grevesmuhlen to Peruwelz | 395.57 mi (636.61 km) |
| Grevesmuhlen to Perwez | 349.62 mi (562.66 km) |
| Grevesmuhlen to Philippeville | 378.25 mi (608.73 km) |
