| Alum Rock to Mangualde | 5,626.34 mi (9,054.71 km) |
| Alum Rock to Marco de Canavezes | 5,584.29 mi (8,987.05 km) |
| Alum Rock to Marinha Grande | 5,620.59 mi (9,045.46 km) |
| Alum Rock to Massama | 5,653.13 mi (9,097.83 km) |
| Alum Rock to Matosinhos | 5,563.15 mi (8,953.02 km) |
| Alum Rock to Mealhada | 5,610.02 mi (9,028.46 km) |
| Alum Rock to Melgaco | 5,536.35 mi (8,909.89 km) |
| Alum Rock to Melres | 5,580.12 mi (8,980.34 km) |
| Alum Rock to Mira | 5,596.68 mi (9,006.99 km) |
| Alum Rock to Miranda do Corvo | 5,627.78 mi (9,057.04 km) |
| Alum Rock to Mirandela | 5,607.01 mi (9,023.60 km) |
| Alum Rock to Mogadouro | 5,631.76 mi (9,063.45 km) |
| Alum Rock to Moimenta da Beira | 5,614.37 mi (9,035.45 km) |
| Alum Rock to Moita | 5,669.72 mi (9,124.54 km) |
| Alum Rock to Moncao | 5,530.27 mi (8,900.11 km) |
