| Fort Madison to Mangualde | 4,199.96 mi (6,759.18 km) |
| Fort Madison to Marco de Canavezes | 4,162.37 mi (6,698.69 km) |
| Fort Madison to Marinha Grande | 4,176.11 mi (6,720.80 km) |
| Fort Madison to Massama | 4,194.95 mi (6,751.12 km) |
| Fort Madison to Matosinhos | 4,137.51 mi (6,658.68 km) |
| Fort Madison to Mealhada | 4,176.30 mi (6,721.11 km) |
| Fort Madison to Melgaco | 4,125.38 mi (6,639.16 km) |
| Fort Madison to Melres | 4,155.07 mi (6,686.93 km) |
| Fort Madison to Mira | 4,161.66 mi (6,697.55 km) |
| Fort Madison to Miranda do Corvo | 4,191.45 mi (6,745.48 km) |
| Fort Madison to Mirandela | 4,195.52 mi (6,752.04 km) |
| Fort Madison to Mogadouro | 4,221.63 mi (6,794.06 km) |
| Fort Madison to Moimenta da Beira | 4,193.60 mi (6,748.95 km) |
| Fort Madison to Moita | 4,212.24 mi (6,778.94 km) |
| Fort Madison to Moncao | 4,117.29 mi (6,626.14 km) |
