| Medulla to Mangualde | 4,202.85 mi (6,763.83 km) |
| Medulla to Marco de Canavezes | 4,174.08 mi (6,717.54 km) |
| Medulla to Marinha Grande | 4,155.99 mi (6,688.42 km) |
| Medulla to Massama | 4,153.91 mi (6,685.08 km) |
| Medulla to Matosinhos | 4,146.16 mi (6,672.61 km) |
| Medulla to Mealhada | 4,171.04 mi (6,712.65 km) |
| Medulla to Melgaco | 4,154.36 mi (6,685.80 km) |
| Medulla to Melres | 4,163.15 mi (6,699.94 km) |
| Medulla to Mira | 4,155.74 mi (6,688.02 km) |
| Medulla to Miranda do Corvo | 4,181.47 mi (6,729.42 km) |
| Medulla to Mirandela | 4,218.41 mi (6,788.87 km) |
| Medulla to Mogadouro | 4,244.27 mi (6,830.49 km) |
| Medulla to Moimenta da Beira | 4,204.45 mi (6,766.41 km) |
| Medulla to Moita | 4,170.92 mi (6,712.45 km) |
| Medulla to Moncao | 4,144.29 mi (6,669.59 km) |
