| Karatepe to Mangualde | 1,961.68 mi (3,157.03 km) |
| Karatepe to Marco de Canavezes | 1,972.97 mi (3,175.19 km) |
| Karatepe to Marinha Grande | 2,035.82 mi (3,276.33 km) |
| Karatepe to Massama | 2,071.83 mi (3,334.29 km) |
| Karatepe to Matosinhos | 2,000.95 mi (3,220.21 km) |
| Karatepe to Mealhada | 2,000.40 mi (3,219.33 km) |
| Karatepe to Melgaco | 1,966.49 mi (3,164.76 km) |
| Karatepe to Melres | 1,987.38 mi (3,198.37 km) |
| Karatepe to Mira | 2,014.10 mi (3,241.37 km) |
| Karatepe to Miranda do Corvo | 1,999.04 mi (3,217.15 km) |
| Karatepe to Mirandela | 1,919.59 mi (3,089.29 km) |
| Karatepe to Mogadouro | 1,897.95 mi (3,054.46 km) |
| Karatepe to Moimenta da Beira | 1,948.56 mi (3,135.91 km) |
| Karatepe to Moita | 2,058.85 mi (3,313.40 km) |
| Karatepe to Moncao | 1,977.79 mi (3,182.94 km) |
