| Furth to Marco de Canavezes | 1,087.54 mi (1,750.23 km) |
| Furth to Marinha Grande | 1,182.48 mi (1,903.02 km) |
| Furth to Massama | 1,242.09 mi (1,998.95 km) |
| Furth to Matosinhos | 1,110.10 mi (1,786.54 km) |
| Furth to Mealhada | 1,134.60 mi (1,825.97 km) |
| Furth to Melgaco | 1,053.73 mi (1,695.81 km) |
| Furth to Melres | 1,102.75 mi (1,774.70 km) |
| Furth to Mira | 1,143.83 mi (1,840.82 km) |
| Furth to Miranda do Corvo | 1,142.63 mi (1,838.88 km) |
| Furth to Mirandela | 1,035.18 mi (1,665.96 km) |
| Furth to Mogadouro | 1,022.98 mi (1,646.33 km) |
| Furth to Moimenta da Beira | 1,074.56 mi (1,729.34 km) |
| Furth to Moita | 1,235.74 mi (1,988.73 km) |
| Furth to Moncao | 1,064.38 mi (1,712.96 km) |
| Furth to Montalegre | 1,045.94 mi (1,683.28 km) |
