| Imperial to Mangualde | 5,591.03 mi (8,997.89 km) |
| Imperial to Marco de Canavezes | 5,551.17 mi (8,933.74 km) |
| Imperial to Marinha Grande | 5,575.09 mi (8,972.24 km) |
| Imperial to Massama | 5,599.84 mi (9,012.07 km) |
| Imperial to Matosinhos | 5,527.86 mi (8,896.24 km) |
| Imperial to Mealhada | 5,570.54 mi (8,964.93 km) |
| Imperial to Melgaco | 5,508.82 mi (8,865.59 km) |
| Imperial to Melres | 5,545.26 mi (8,924.23 km) |
| Imperial to Mira | 5,556.40 mi (8,942.16 km) |
| Imperial to Miranda do Corvo | 5,586.94 mi (8,991.31 km) |
| Imperial to Mirandela | 5,579.66 mi (8,979.60 km) |
| Imperial to Mogadouro | 5,605.30 mi (9,020.86 km) |
| Imperial to Moimenta da Beira | 5,582.06 mi (8,983.45 km) |
| Imperial to Moita | 5,616.93 mi (9,039.57 km) |
| Imperial to Moncao | 5,501.63 mi (8,854.02 km) |
