| Simav to Mangualde | 1,937.92 mi (3,118.79 km) |
| Simav to Marco de Canavezes | 1,952.04 mi (3,141.50 km) |
| Simav to Marinha Grande | 2,009.15 mi (3,233.42 km) |
| Simav to Massama | 2,041.27 mi (3,285.10 km) |
| Simav to Matosinhos | 1,980.34 mi (3,187.05 km) |
| Simav to Mealhada | 1,976.12 mi (3,180.27 km) |
| Simav to Melgaco | 1,949.81 mi (3,137.92 km) |
| Simav to Melres | 1,966.07 mi (3,164.09 km) |
| Simav to Mira | 1,990.23 mi (3,202.97 km) |
| Simav to Miranda do Corvo | 1,973.45 mi (3,175.96 km) |
| Simav to Mirandela | 1,899.48 mi (3,056.91 km) |
| Simav to Mogadouro | 1,876.87 mi (3,020.54 km) |
| Simav to Moimenta da Beira | 1,926.39 mi (3,100.23 km) |
| Simav to Moita | 2,027.60 mi (3,263.11 km) |
| Simav to Moncao | 1,961.02 mi (3,155.96 km) |
