| Pembroke Dock to Opwijk | 397.04 mi (638.97 km) |
| Pembroke Dock to Ostend | 339.96 mi (547.12 km) |
| Pembroke Dock to Oud-Heverlee | 419.50 mi (675.13 km) |
| Pembroke Dock to Oud-Turnhout | 427.48 mi (687.96 km) |
| Pembroke Dock to Oudenaarde | 373.75 mi (601.49 km) |
| Pembroke Dock to Oudenburg | 343.86 mi (553.39 km) |
| Pembroke Dock to Oupeye | 463.03 mi (745.17 km) |
| Pembroke Dock to Overijse | 414.54 mi (667.13 km) |
| Pembroke Dock to Overpelt | 446.98 mi (719.35 km) |
| Pembroke Dock to Paal | 438.47 mi (705.65 km) |
| Pembroke Dock to Peer | 449.43 mi (723.29 km) |
| Pembroke Dock to Pepinster | 472.66 mi (760.67 km) |
| Pembroke Dock to Peruwelz | 378.61 mi (609.31 km) |
| Pembroke Dock to Perwez | 429.03 mi (690.45 km) |
| Pembroke Dock to Philippeville | 425.71 mi (685.12 km) |
