| Risch to Mangualde | 921.80 mi (1,483.49 km) |
| Risch to Marco de Canavezes | 916.67 mi (1,475.24 km) |
| Risch to Marinha Grande | 1,006.44 mi (1,619.71 km) |
| Risch to Massama | 1,062.69 mi (1,710.24 km) |
| Risch to Matosinhos | 940.94 mi (1,514.29 km) |
| Risch to Mealhada | 960.25 mi (1,545.37 km) |
| Risch to Melgaco | 889.17 mi (1,430.98 km) |
| Risch to Melres | 931.97 mi (1,499.87 km) |
| Risch to Mira | 970.59 mi (1,562.01 km) |
| Risch to Miranda do Corvo | 966.51 mi (1,555.44 km) |
| Risch to Mirandela | 863.04 mi (1,388.94 km) |
| Risch to Mogadouro | 848.46 mi (1,365.46 km) |
| Risch to Moimenta da Beira | 900.85 mi (1,449.79 km) |
| Risch to Moita | 1,055.14 mi (1,698.08 km) |
| Risch to Moncao | 900.20 mi (1,448.74 km) |
