| Pirna to Marco de Canavezes | 1,248.57 mi (2,009.38 km) |
| Pirna to Marinha Grande | 1,345.02 mi (2,164.60 km) |
| Pirna to Massama | 1,405.57 mi (2,262.04 km) |
| Pirna to Matosinhos | 1,270.48 mi (2,044.64 km) |
| Pirna to Mealhada | 1,296.68 mi (2,086.81 km) |
| Pirna to Melgaco | 1,212.62 mi (1,951.52 km) |
| Pirna to Melres | 1,263.71 mi (2,033.74 km) |
| Pirna to Mira | 1,305.53 mi (2,101.05 km) |
| Pirna to Miranda do Corvo | 1,305.25 mi (2,100.60 km) |
| Pirna to Mirandela | 1,196.75 mi (1,925.99 km) |
| Pirna to Mogadouro | 1,185.34 mi (1,907.63 km) |
| Pirna to Moimenta da Beira | 1,236.56 mi (1,990.04 km) |
| Pirna to Moita | 1,399.57 mi (2,252.39 km) |
| Pirna to Moncao | 1,223.09 mi (1,968.38 km) |
| Pirna to Montalegre | 1,206.11 mi (1,941.04 km) |
