| Marum to Marco de Canavezes | 1,064.63 mi (1,713.36 km) |
| Marum to Marinha Grande | 1,169.97 mi (1,882.88 km) |
| Marum to Massama | 1,237.82 mi (1,992.07 km) |
| Marum to Matosinhos | 1,080.88 mi (1,739.52 km) |
| Marum to Mealhada | 1,119.35 mi (1,801.41 km) |
| Marum to Melgaco | 1,015.46 mi (1,634.23 km) |
| Marum to Melres | 1,078.62 mi (1,735.87 km) |
| Marum to Mira | 1,124.66 mi (1,809.96 km) |
| Marum to Miranda do Corvo | 1,132.48 mi (1,822.55 km) |
| Marum to Mirandela | 1,019.40 mi (1,640.56 km) |
| Marum to Mogadouro | 1,015.24 mi (1,633.87 km) |
| Marum to Moimenta da Beira | 1,060.92 mi (1,707.38 km) |
| Marum to Moita | 1,235.99 mi (1,989.13 km) |
| Marum to Moncao | 1,024.38 mi (1,648.58 km) |
| Marum to Montalegre | 1,017.71 mi (1,637.85 km) |
