| Bay City to Opwijk | 3,908.54 mi (6,290.18 km) |
| Bay City to Ostend | 3,851.97 mi (6,199.15 km) |
| Bay City to Oud-Heverlee | 3,931.39 mi (6,326.96 km) |
| Bay City to Oud-Turnhout | 3,926.50 mi (6,319.09 km) |
| Bay City to Oudenaarde | 3,890.46 mi (6,261.09 km) |
| Bay City to Oudenburg | 3,856.45 mi (6,206.35 km) |
| Bay City to Oupeye | 3,972.53 mi (6,393.17 km) |
| Bay City to Overijse | 3,928.09 mi (6,321.65 km) |
| Bay City to Overpelt | 3,946.16 mi (6,350.74 km) |
| Bay City to Paal | 3,943.24 mi (6,346.04 km) |
| Bay City to Peer | 3,950.48 mi (6,357.68 km) |
| Bay City to Pepinster | 3,984.08 mi (6,411.76 km) |
| Bay City to Peruwelz | 3,901.23 mi (6,278.42 km) |
| Bay City to Perwez | 3,944.28 mi (6,347.70 km) |
| Bay City to Philippeville | 3,949.07 mi (6,355.41 km) |
