| Palma del Rio to Mangualde | 240.58 mi (387.17 km) |
| Palma del Rio to Marco de Canavezes | 285.13 mi (458.87 km) |
| Palma del Rio to Marinha Grande | 242.39 mi (390.10 km) |
| Palma del Rio to Massama | 228.59 mi (367.89 km) |
| Palma del Rio to Matosinhos | 301.87 mi (485.81 km) |
| Palma del Rio to Mealhada | 251.46 mi (404.69 km) |
| Palma del Rio to Melgaco | 343.64 mi (553.03 km) |
| Palma del Rio to Melres | 285.98 mi (460.25 km) |
| Palma del Rio to Mira | 264.38 mi (425.47 km) |
| Palma del Rio to Miranda do Corvo | 233.20 mi (375.29 km) |
| Palma del Rio to Mirandela | 280.37 mi (451.21 km) |
| Palma del Rio to Mogadouro | 262.39 mi (422.28 km) |
| Palma del Rio to Moimenta da Beira | 258.54 mi (416.08 km) |
| Palma del Rio to Moita | 211.40 mi (340.21 km) |
| Palma del Rio to Moncao | 346.38 mi (557.45 km) |
