| New Philadelphia to Opwijk | 3,956.01 mi (6,366.58 km) |
| New Philadelphia to Ostend | 3,898.76 mi (6,274.45 km) |
| New Philadelphia to Oud-Heverlee | 3,978.98 mi (6,403.56 km) |
| New Philadelphia to Oud-Turnhout | 3,976.73 mi (6,399.92 km) |
| New Philadelphia to Oudenaarde | 3,936.54 mi (6,335.25 km) |
| New Philadelphia to Oudenburg | 3,903.16 mi (6,281.53 km) |
| New Philadelphia to Oupeye | 4,021.05 mi (6,471.26 km) |
| New Philadelphia to Overijse | 3,975.26 mi (6,397.56 km) |
| New Philadelphia to Overpelt | 3,996.59 mi (6,431.89 km) |
| New Philadelphia to Paal | 3,992.52 mi (6,425.34 km) |
| New Philadelphia to Peer | 4,000.59 mi (6,438.33 km) |
| New Philadelphia to Pepinster | 4,032.25 mi (6,489.28 km) |
| New Philadelphia to Peruwelz | 3,945.77 mi (6,350.10 km) |
| New Philadelphia to Perwez | 3,991.17 mi (6,423.16 km) |
| New Philadelphia to Philippeville | 3,993.66 mi (6,427.17 km) |
