| Fostoria to Opwijk | 4,001.70 mi (6,440.12 km) |
| Fostoria to Ostend | 3,944.70 mi (6,348.39 km) |
| Fostoria to Oud-Heverlee | 4,024.64 mi (6,477.03 km) |
| Fostoria to Oud-Turnhout | 4,021.27 mi (6,471.61 km) |
| Fostoria to Oudenaarde | 3,982.81 mi (6,409.71 km) |
| Fostoria to Oudenburg | 3,949.14 mi (6,355.52 km) |
| Fostoria to Oupeye | 4,066.35 mi (6,544.15 km) |
| Fostoria to Overijse | 4,021.09 mi (6,471.33 km) |
| Fostoria to Overpelt | 4,041.06 mi (6,503.46 km) |
| Fostoria to Paal | 4,037.48 mi (6,497.69 km) |
| Fostoria to Peer | 4,045.20 mi (6,510.12 km) |
| Fostoria to Pepinster | 4,077.70 mi (6,562.43 km) |
| Fostoria to Peruwelz | 3,992.69 mi (6,425.61 km) |
| Fostoria to Perwez | 4,037.13 mi (6,497.13 km) |
| Fostoria to Philippeville | 4,040.59 mi (6,502.70 km) |
