| Adel to Mangualde | 959.01 mi (1,543.37 km) |
| Adel to Marco de Canavezes | 926.21 mi (1,490.58 km) |
| Adel to Marinha Grande | 1,032.94 mi (1,662.36 km) |
| Adel to Massama | 1,103.92 mi (1,776.58 km) |
| Adel to Matosinhos | 934.83 mi (1,504.47 km) |
| Adel to Mealhada | 983.66 mi (1,583.04 km) |
| Adel to Melgaco | 866.58 mi (1,394.63 km) |
| Adel to Melres | 937.74 mi (1,509.14 km) |
| Adel to Mira | 984.71 mi (1,584.74 km) |
| Adel to Miranda do Corvo | 1,000.70 mi (1,610.48 km) |
| Adel to Mirandela | 892.36 mi (1,436.11 km) |
| Adel to Mogadouro | 896.60 mi (1,442.94 km) |
| Adel to Moimenta da Beira | 931.94 mi (1,499.82 km) |
| Adel to Moita | 1,106.58 mi (1,780.87 km) |
| Adel to Moncao | 872.92 mi (1,404.83 km) |
