| Astley to Mangualde | 924.89 mi (1,488.46 km) |
| Astley to Marco de Canavezes | 891.26 mi (1,434.35 km) |
| Astley to Marinha Grande | 997.70 mi (1,605.64 km) |
| Astley to Massama | 1,068.71 mi (1,719.92 km) |
| Astley to Matosinhos | 899.17 mi (1,447.07 km) |
| Astley to Mealhada | 948.72 mi (1,526.82 km) |
| Astley to Melgaco | 830.96 mi (1,337.31 km) |
| Astley to Melres | 902.52 mi (1,452.47 km) |
| Astley to Mira | 949.39 mi (1,527.89 km) |
| Astley to Miranda do Corvo | 966.05 mi (1,554.71 km) |
| Astley to Mirandela | 858.64 mi (1,381.86 km) |
| Astley to Mogadouro | 863.68 mi (1,389.96 km) |
| Astley to Moimenta da Beira | 897.85 mi (1,444.95 km) |
| Astley to Moita | 1,071.76 mi (1,724.83 km) |
| Astley to Moncao | 837.04 mi (1,347.09 km) |
