| Nis to Mangualde | 1,527.07 mi (2,457.59 km) |
| Nis to Marco de Canavezes | 1,535.38 mi (2,470.96 km) |
| Nis to Marinha Grande | 1,604.12 mi (2,581.58 km) |
| Nis to Massama | 1,644.79 mi (2,647.03 km) |
| Nis to Matosinhos | 1,562.92 mi (2,515.28 km) |
| Nis to Mealhada | 1,566.16 mi (2,520.50 km) |
| Nis to Melgaco | 1,525.07 mi (2,454.37 km) |
| Nis to Melres | 1,550.09 mi (2,494.63 km) |
| Nis to Mira | 1,579.35 mi (2,541.71 km) |
| Nis to Miranda do Corvo | 1,566.29 mi (2,520.70 km) |
| Nis to Mirandela | 1,481.44 mi (2,384.14 km) |
| Nis to Mogadouro | 1,460.84 mi (2,350.99 km) |
| Nis to Moimenta da Beira | 1,512.33 mi (2,433.85 km) |
| Nis to Moita | 1,632.81 mi (2,627.75 km) |
| Nis to Moncao | 1,536.41 mi (2,472.61 km) |
