| Piastow to Marco de Canavezes | 1,555.73 mi (2,503.70 km) |
| Piastow to Marinha Grande | 1,651.08 mi (2,657.16 km) |
| Piastow to Massama | 1,710.57 mi (2,752.89 km) |
| Piastow to Matosinhos | 1,577.97 mi (2,539.50 km) |
| Piastow to Mealhada | 1,603.14 mi (2,580.00 km) |
| Piastow to Melgaco | 1,520.61 mi (2,447.19 km) |
| Piastow to Melres | 1,570.91 mi (2,528.13 km) |
| Piastow to Mira | 1,612.27 mi (2,594.70 km) |
| Piastow to Miranda do Corvo | 1,611.23 mi (2,593.02 km) |
| Piastow to Mirandela | 1,503.57 mi (2,419.76 km) |
| Piastow to Mogadouro | 1,491.56 mi (2,400.43 km) |
| Piastow to Moimenta da Beira | 1,543.07 mi (2,483.34 km) |
| Piastow to Moita | 1,704.07 mi (2,742.43 km) |
| Piastow to Moncao | 1,531.14 mi (2,464.12 km) |
| Piastow to Montalegre | 1,513.68 mi (2,436.03 km) |
