| Grumo Nevano to Marco de Canavezes | 1,164.78 mi (1,874.53 km) |
| Grumo Nevano to Marinha Grande | 1,220.92 mi (1,964.88 km) |
| Grumo Nevano to Massama | 1,254.02 mi (2,018.15 km) |
| Grumo Nevano to Matosinhos | 1,193.18 mi (1,920.24 km) |
| Grumo Nevano to Mealhada | 1,187.95 mi (1,911.81 km) |
| Grumo Nevano to Melgaco | 1,165.08 mi (1,875.01 km) |
| Grumo Nevano to Melres | 1,178.65 mi (1,896.86 km) |
| Grumo Nevano to Mira | 1,202.10 mi (1,934.60 km) |
| Grumo Nevano to Miranda do Corvo | 1,185.18 mi (1,907.36 km) |
| Grumo Nevano to Mirandela | 1,112.67 mi (1,790.67 km) |
| Grumo Nevano to Mogadouro | 1,089.66 mi (1,753.63 km) |
| Grumo Nevano to Moimenta da Beira | 1,138.71 mi (1,832.58 km) |
| Grumo Nevano to Moita | 1,240.65 mi (1,996.64 km) |
| Grumo Nevano to Moncao | 1,176.19 mi (1,892.89 km) |
| Grumo Nevano to Montalegre | 1,142.13 mi (1,838.08 km) |
