| Pianella to Marco de Canavezes | 1,143.43 mi (1,840.18 km) |
| Pianella to Marinha Grande | 1,207.23 mi (1,942.85 km) |
| Pianella to Massama | 1,245.46 mi (2,004.37 km) |
| Pianella to Matosinhos | 1,171.45 mi (1,885.26 km) |
| Pianella to Mealhada | 1,171.09 mi (1,884.68 km) |
| Pianella to Melgaco | 1,138.09 mi (1,831.59 km) |
| Pianella to Melres | 1,157.82 mi (1,863.33 km) |
| Pianella to Mira | 1,184.70 mi (1,906.58 km) |
| Pianella to Miranda do Corvo | 1,170.09 mi (1,883.08 km) |
| Pianella to Mirandela | 1,090.14 mi (1,754.41 km) |
| Pianella to Mogadouro | 1,068.40 mi (1,719.42 km) |
| Pianella to Moimenta da Beira | 1,119.00 mi (1,800.86 km) |
| Pianella to Moita | 1,233.06 mi (1,984.42 km) |
| Pianella to Moncao | 1,149.36 mi (1,849.71 km) |
| Pianella to Montalegre | 1,117.15 mi (1,797.88 km) |
