| Selston to Mangualde | 912.92 mi (1,469.20 km) |
| Selston to Marco de Canavezes | 881.18 mi (1,418.12 km) |
| Selston to Marinha Grande | 988.21 mi (1,590.37 km) |
| Selston to Massama | 1,059.07 mi (1,704.41 km) |
| Selston to Matosinhos | 890.78 mi (1,433.58 km) |
| Selston to Mealhada | 938.57 mi (1,510.47 km) |
| Selston to Melgaco | 822.54 mi (1,323.75 km) |
| Selston to Melres | 893.06 mi (1,437.24 km) |
| Selston to Mira | 940.13 mi (1,513.00 km) |
| Selston to Miranda do Corvo | 955.23 mi (1,537.29 km) |
| Selston to Mirandela | 845.87 mi (1,361.29 km) |
| Selston to Mogadouro | 849.24 mi (1,366.73 km) |
| Selston to Moimenta da Beira | 885.85 mi (1,425.64 km) |
| Selston to Moita | 1,061.23 mi (1,707.88 km) |
| Selston to Moncao | 829.25 mi (1,334.55 km) |
