| Parkersburg to Opwijk | 4,016.61 mi (6,464.11 km) |
| Parkersburg to Ostend | 3,959.24 mi (6,371.79 km) |
| Parkersburg to Oud-Heverlee | 4,039.60 mi (6,501.10 km) |
| Parkersburg to Oud-Turnhout | 4,037.97 mi (6,498.49 km) |
| Parkersburg to Oudenaarde | 3,996.82 mi (6,432.26 km) |
| Parkersburg to Oudenburg | 3,963.62 mi (6,378.83 km) |
| Parkersburg to Oupeye | 4,081.86 mi (6,569.12 km) |
| Parkersburg to Overijse | 4,035.78 mi (6,494.95 km) |
| Parkersburg to Overpelt | 4,057.87 mi (6,530.51 km) |
| Parkersburg to Paal | 4,053.52 mi (6,523.52 km) |
| Parkersburg to Peer | 4,061.79 mi (6,536.82 km) |
| Parkersburg to Pepinster | 4,092.96 mi (6,586.98 km) |
| Parkersburg to Peruwelz | 4,005.67 mi (6,446.51 km) |
| Parkersburg to Perwez | 4,051.60 mi (6,520.42 km) |
| Parkersburg to Philippeville | 4,053.54 mi (6,523.53 km) |
