| Cumpana to Mangualde | 1,854.72 mi (2,984.88 km) |
| Cumpana to Marco de Canavezes | 1,860.77 mi (2,994.63 km) |
| Cumpana to Marinha Grande | 1,933.36 mi (3,111.44 km) |
| Cumpana to Massama | 1,976.24 mi (3,180.45 km) |
| Cumpana to Matosinhos | 1,887.86 mi (3,038.22 km) |
| Cumpana to Mealhada | 1,893.95 mi (3,048.02 km) |
| Cumpana to Melgaco | 1,846.81 mi (2,972.15 km) |
| Cumpana to Melres | 1,875.69 mi (3,018.63 km) |
| Cumpana to Mira | 1,906.75 mi (3,068.62 km) |
| Cumpana to Miranda do Corvo | 1,895.01 mi (3,049.73 km) |
| Cumpana to Mirandela | 1,806.53 mi (2,907.33 km) |
| Cumpana to Mogadouro | 1,786.86 mi (2,875.67 km) |
| Cumpana to Moimenta da Beira | 1,838.86 mi (2,959.36 km) |
| Cumpana to Moita | 1,964.69 mi (3,161.87 km) |
| Cumpana to Moncao | 1,858.15 mi (2,990.40 km) |
