| Smartno to Mangualde | 1,192.10 mi (1,918.49 km) |
| Smartno to Marco de Canavezes | 1,193.62 mi (1,920.94 km) |
| Smartno to Marinha Grande | 1,273.96 mi (2,050.23 km) |
| Smartno to Massama | 1,323.18 mi (2,129.45 km) |
| Smartno to Matosinhos | 1,219.75 mi (1,963.00 km) |
| Smartno to Mealhada | 1,231.32 mi (1,981.61 km) |
| Smartno to Melgaco | 1,174.34 mi (1,889.92 km) |
| Smartno to Melres | 1,208.79 mi (1,945.35 km) |
| Smartno to Mira | 1,243.18 mi (2,000.71 km) |
| Smartno to Miranda do Corvo | 1,234.60 mi (1,986.89 km) |
| Smartno to Mirandela | 1,139.23 mi (1,833.42 km) |
| Smartno to Mogadouro | 1,121.42 mi (1,804.75 km) |
| Smartno to Moimenta da Beira | 1,174.01 mi (1,889.38 km) |
| Smartno to Moita | 1,313.34 mi (2,113.62 km) |
| Smartno to Moncao | 1,185.62 mi (1,908.07 km) |
