| Miercurea-Ciuc to Mangualde | 1,715.15 mi (2,760.27 km) |
| Miercurea-Ciuc to Marco de Canavezes | 1,717.36 mi (2,763.83 km) |
| Miercurea-Ciuc to Marinha Grande | 1,796.39 mi (2,891.00 km) |
| Miercurea-Ciuc to Massama | 1,843.93 mi (2,967.51 km) |
| Miercurea-Ciuc to Matosinhos | 1,743.59 mi (2,806.03 km) |
| Miercurea-Ciuc to Mealhada | 1,754.41 mi (2,823.45 km) |
| Miercurea-Ciuc to Melgaco | 1,698.16 mi (2,732.93 km) |
| Miercurea-Ciuc to Melres | 1,732.51 mi (2,788.21 km) |
| Miercurea-Ciuc to Mira | 1,766.45 mi (2,842.83 km) |
| Miercurea-Ciuc to Miranda do Corvo | 1,757.22 mi (2,827.98 km) |
| Miercurea-Ciuc to Mirandela | 1,662.97 mi (2,676.29 km) |
| Miercurea-Ciuc to Mogadouro | 1,644.91 mi (2,647.23 km) |
| Miercurea-Ciuc to Moimenta da Beira | 1,697.44 mi (2,731.77 km) |
| Miercurea-Ciuc to Moita | 1,833.54 mi (2,950.79 km) |
| Miercurea-Ciuc to Moncao | 1,709.43 mi (2,751.06 km) |
