| Armthorpe to Mangualde | 946.56 mi (1,523.33 km) |
| Armthorpe to Marco de Canavezes | 914.71 mi (1,472.08 km) |
| Armthorpe to Marinha Grande | 1,021.70 mi (1,644.27 km) |
| Armthorpe to Massama | 1,092.59 mi (1,758.35 km) |
| Armthorpe to Matosinhos | 924.18 mi (1,487.33 km) |
| Armthorpe to Mealhada | 972.10 mi (1,564.45 km) |
| Armthorpe to Melgaco | 855.93 mi (1,377.49 km) |
| Armthorpe to Melres | 926.55 mi (1,491.13 km) |
| Armthorpe to Mira | 973.61 mi (1,566.87 km) |
| Armthorpe to Miranda do Corvo | 988.81 mi (1,591.33 km) |
| Armthorpe to Mirandela | 879.53 mi (1,415.47 km) |
| Armthorpe to Mogadouro | 882.96 mi (1,420.98 km) |
| Armthorpe to Moimenta da Beira | 919.49 mi (1,479.77 km) |
| Armthorpe to Moita | 1,094.80 mi (1,761.91 km) |
| Armthorpe to Moncao | 862.59 mi (1,388.20 km) |
