| Puerto Real to Mangualde | 294.03 mi (473.19 km) |
| Puerto Real to Marco de Canavezes | 338.36 mi (544.54 km) |
| Puerto Real to Marinha Grande | 267.76 mi (430.92 km) |
| Puerto Real to Massama | 228.31 mi (367.43 km) |
| Puerto Real to Matosinhos | 348.69 mi (561.16 km) |
| Puerto Real to Mealhada | 292.95 mi (471.46 km) |
| Puerto Real to Melgaco | 401.63 mi (646.37 km) |
| Puerto Real to Melres | 335.27 mi (539.56 km) |
| Puerto Real to Mira | 302.71 mi (487.17 km) |
| Puerto Real to Miranda do Corvo | 272.64 mi (438.77 km) |
| Puerto Real to Mirandela | 346.52 mi (557.68 km) |
| Puerto Real to Mogadouro | 333.13 mi (536.11 km) |
| Puerto Real to Moimenta da Beira | 316.88 mi (509.98 km) |
| Puerto Real to Moita | 211.71 mi (340.71 km) |
| Puerto Real to Moncao | 402.08 mi (647.08 km) |
