| Clervaux to Marco de Canavezes | 916.54 mi (1,475.03 km) |
| Clervaux to Marinha Grande | 1,017.70 mi (1,637.83 km) |
| Clervaux to Massama | 1,082.12 mi (1,741.51 km) |
| Clervaux to Matosinhos | 936.31 mi (1,506.85 km) |
| Clervaux to Mealhada | 967.93 mi (1,557.74 km) |
| Clervaux to Melgaco | 875.02 mi (1,408.21 km) |
| Clervaux to Melres | 931.33 mi (1,498.83 km) |
| Clervaux to Mira | 975.31 mi (1,569.60 km) |
| Clervaux to Miranda do Corvo | 978.64 mi (1,574.97 km) |
| Clervaux to Mirandela | 867.06 mi (1,395.39 km) |
| Clervaux to Mogadouro | 858.81 mi (1,382.12 km) |
| Clervaux to Moimenta da Beira | 908.02 mi (1,461.31 km) |
| Clervaux to Moita | 1,078.10 mi (1,735.03 km) |
| Clervaux to Moncao | 885.01 mi (1,424.29 km) |
| Clervaux to Montalegre | 871.85 mi (1,403.10 km) |
