| Dorchester to Mangualde | 743.93 mi (1,197.25 km) |
| Dorchester to Marco de Canavezes | 712.97 mi (1,147.42 km) |
| Dorchester to Marinha Grande | 820.15 mi (1,319.90 km) |
| Dorchester to Massama | 890.88 mi (1,433.73 km) |
| Dorchester to Matosinhos | 723.44 mi (1,164.27 km) |
| Dorchester to Mealhada | 770.26 mi (1,239.61 km) |
| Dorchester to Melgaco | 655.31 mi (1,054.62 km) |
| Dorchester to Melres | 725.14 mi (1,167.00 km) |
| Dorchester to Mira | 772.25 mi (1,242.81 km) |
| Dorchester to Miranda do Corvo | 786.62 mi (1,265.94 km) |
| Dorchester to Mirandela | 676.68 mi (1,089.01 km) |
| Dorchester to Mogadouro | 679.68 mi (1,093.84 km) |
| Dorchester to Moimenta da Beira | 716.88 mi (1,153.71 km) |
| Dorchester to Moita | 892.65 mi (1,436.58 km) |
| Dorchester to Moncao | 662.39 mi (1,066.01 km) |
