| Penkridge to Opwijk | 294.94 mi (474.66 km) |
| Penkridge to Ostend | 237.98 mi (383.00 km) |
| Penkridge to Oud-Heverlee | 317.90 mi (511.61 km) |
| Penkridge to Oud-Turnhout | 317.01 mi (510.18 km) |
| Penkridge to Oudenaarde | 276.43 mi (444.88 km) |
| Penkridge to Oudenburg | 242.44 mi (390.17 km) |
| Penkridge to Oupeye | 359.97 mi (579.32 km) |
| Penkridge to Overijse | 314.31 mi (505.84 km) |
| Penkridge to Overpelt | 336.98 mi (542.31 km) |
| Penkridge to Paal | 331.81 mi (534.00 km) |
| Penkridge to Peer | 340.58 mi (548.11 km) |
| Penkridge to Pepinster | 371.12 mi (597.26 km) |
| Penkridge to Peruwelz | 288.08 mi (463.63 km) |
| Penkridge to Perwez | 330.38 mi (531.70 km) |
| Penkridge to Philippeville | 335.65 mi (540.17 km) |
