| Martinsburg to Opwijk | 3,865.49 mi (6,220.91 km) |
| Martinsburg to Ostend | 3,807.95 mi (6,128.30 km) |
| Martinsburg to Oud-Heverlee | 3,888.48 mi (6,257.91 km) |
| Martinsburg to Oud-Turnhout | 3,888.13 mi (6,257.34 km) |
| Martinsburg to Oudenaarde | 3,845.09 mi (6,188.07 km) |
| Martinsburg to Oudenburg | 3,812.27 mi (6,135.26 km) |
| Martinsburg to Oupeye | 3,931.08 mi (6,326.46 km) |
| Martinsburg to Overijse | 3,884.47 mi (6,251.44 km) |
| Martinsburg to Overpelt | 3,908.07 mi (6,289.44 km) |
| Martinsburg to Paal | 3,903.18 mi (6,281.56 km) |
| Martinsburg to Peer | 3,911.83 mi (6,295.48 km) |
| Martinsburg to Pepinster | 3,941.98 mi (6,344.01 km) |
| Martinsburg to Peruwelz | 3,853.19 mi (6,201.12 km) |
| Martinsburg to Perwez | 3,900.12 mi (6,276.63 km) |
| Martinsburg to Philippeville | 3,900.96 mi (6,277.99 km) |
