| Lachen to Mangualde | 941.03 mi (1,514.44 km) |
| Lachen to Marco de Canavezes | 936.12 mi (1,506.55 km) |
| Lachen to Marinha Grande | 1,025.60 mi (1,650.55 km) |
| Lachen to Massama | 1,081.62 mi (1,740.70 km) |
| Lachen to Matosinhos | 960.45 mi (1,545.70 km) |
| Lachen to Mealhada | 979.52 mi (1,576.39 km) |
| Lachen to Melgaco | 908.85 mi (1,462.65 km) |
| Lachen to Melres | 951.43 mi (1,531.17 km) |
| Lachen to Mira | 989.91 mi (1,593.11 km) |
| Lachen to Miranda do Corvo | 985.68 mi (1,586.29 km) |
| Lachen to Mirandela | 882.45 mi (1,420.17 km) |
| Lachen to Mogadouro | 867.75 mi (1,396.51 km) |
| Lachen to Moimenta da Beira | 920.18 mi (1,480.88 km) |
| Lachen to Moita | 1,073.97 mi (1,728.39 km) |
| Lachen to Moncao | 919.89 mi (1,480.42 km) |
