| Fort Madison to Opwijk | 4,327.82 mi (6,964.95 km) |
| Fort Madison to Ostend | 4,271.65 mi (6,874.56 km) |
| Fort Madison to Oud-Heverlee | 4,350.57 mi (7,001.57 km) |
| Fort Madison to Oud-Turnhout | 4,344.50 mi (6,991.79 km) |
| Fort Madison to Oudenaarde | 4,310.39 mi (6,936.90 km) |
| Fort Madison to Oudenburg | 4,276.15 mi (6,881.81 km) |
| Fort Madison to Oupeye | 4,391.23 mi (7,067.00 km) |
| Fort Madison to Overijse | 4,347.47 mi (6,996.58 km) |
| Fort Madison to Overpelt | 4,364.03 mi (7,023.23 km) |
| Fort Madison to Paal | 4,361.65 mi (7,019.40 km) |
| Fort Madison to Peer | 4,368.49 mi (7,030.40 km) |
| Fort Madison to Pepinster | 4,402.92 mi (7,085.82 km) |
| Fort Madison to Peruwelz | 4,321.79 mi (6,955.25 km) |
| Fort Madison to Perwez | 4,363.76 mi (7,022.79 km) |
| Fort Madison to Philippeville | 4,369.53 mi (7,032.08 km) |
