| Fort Madison to Montalegre | 4,156.60 mi (6,689.40 km) |
| Fort Madison to Montemor-o-Novo | 4,247.77 mi (6,836.13 km) |
| Fort Madison to Montemor-o-Velho | 4,173.14 mi (6,716.02 km) |
| Fort Madison to Montijo | 4,214.93 mi (6,783.27 km) |
| Fort Madison to Mortagua | 4,184.44 mi (6,734.21 km) |
| Fort Madison to Moura | 4,301.78 mi (6,923.05 km) |
| Fort Madison to Murtosa | 4,155.91 mi (6,688.29 km) |
| Fort Madison to Nazare | 4,175.18 mi (6,719.30 km) |
| Fort Madison to Nelas | 4,198.97 mi (6,757.59 km) |
| Fort Madison to Obidos | 4,179.38 mi (6,726.06 km) |
| Fort Madison to Odemira | 4,266.46 mi (6,866.20 km) |
| Fort Madison to Odivelas | 4,198.19 mi (6,756.33 km) |
| Fort Madison to Oeiras | 4,195.58 mi (6,752.13 km) |
| Fort Madison to Olhao | 4,323.71 mi (6,958.35 km) |
| Fort Madison to Oliveira de Azemeis | 4,159.44 mi (6,693.97 km) |
