| Niederwerrn to Opwijk | 270.74 mi (435.72 km) |
| Niederwerrn to Ostend | 328.01 mi (527.88 km) |
| Niederwerrn to Oud-Heverlee | 248.34 mi (399.67 km) |
| Niederwerrn to Oud-Turnhout | 243.37 mi (391.66 km) |
| Niederwerrn to Oudenaarde | 294.48 mi (473.92 km) |
| Niederwerrn to Oudenburg | 324.02 mi (521.46 km) |
| Niederwerrn to Oupeye | 204.82 mi (329.63 km) |
| Niederwerrn to Overijse | 253.51 mi (407.98 km) |
| Niederwerrn to Overpelt | 223.40 mi (359.53 km) |
| Niederwerrn to Paal | 229.93 mi (370.04 km) |
| Niederwerrn to Peer | 220.06 mi (354.15 km) |
| Niederwerrn to Pepinster | 195.68 mi (314.92 km) |
| Niederwerrn to Peruwelz | 292.89 mi (471.35 km) |
| Niederwerrn to Perwez | 239.75 mi (385.84 km) |
| Niederwerrn to Philippeville | 249.59 mi (401.68 km) |
