| Ilmenau to Marco de Canavezes | 1,121.83 mi (1,805.41 km) |
| Ilmenau to Marinha Grande | 1,219.90 mi (1,963.24 km) |
| Ilmenau to Massama | 1,281.77 mi (2,062.82 km) |
| Ilmenau to Matosinhos | 1,143.10 mi (1,839.64 km) |
| Ilmenau to Mealhada | 1,171.04 mi (1,884.61 km) |
| Ilmenau to Melgaco | 1,084.11 mi (1,744.70 km) |
| Ilmenau to Melres | 1,136.88 mi (1,829.63 km) |
| Ilmenau to Mira | 1,179.44 mi (1,898.12 km) |
| Ilmenau to Miranda do Corvo | 1,180.30 mi (1,899.50 km) |
| Ilmenau to Mirandela | 1,070.66 mi (1,723.06 km) |
| Ilmenau to Mogadouro | 1,060.20 mi (1,706.23 km) |
| Ilmenau to Moimenta da Beira | 1,110.89 mi (1,787.80 km) |
| Ilmenau to Moita | 1,276.40 mi (2,054.17 km) |
| Ilmenau to Moncao | 1,094.44 mi (1,761.34 km) |
| Ilmenau to Montalegre | 1,078.62 mi (1,735.87 km) |
