| Trzin to Mangualde | 1,179.75 mi (1,898.62 km) |
| Trzin to Marco de Canavezes | 1,180.94 mi (1,900.55 km) |
| Trzin to Marinha Grande | 1,261.79 mi (2,030.65 km) |
| Trzin to Massama | 1,311.38 mi (2,110.46 km) |
| Trzin to Matosinhos | 1,207.00 mi (1,942.47 km) |
| Trzin to Mealhada | 1,218.96 mi (1,961.72 km) |
| Trzin to Melgaco | 1,161.25 mi (1,868.85 km) |
| Trzin to Melres | 1,196.13 mi (1,924.98 km) |
| Trzin to Mira | 1,230.75 mi (1,980.70 km) |
| Trzin to Miranda do Corvo | 1,222.38 mi (1,967.24 km) |
| Trzin to Mirandela | 1,126.57 mi (1,813.04 km) |
| Trzin to Mogadouro | 1,108.90 mi (1,784.61 km) |
| Trzin to Moimenta da Beira | 1,161.51 mi (1,869.27 km) |
| Trzin to Moita | 1,301.65 mi (2,094.81 km) |
| Trzin to Moncao | 1,172.52 mi (1,886.99 km) |
