| Masamagrell to Mangualde | 399.13 mi (642.33 km) |
| Masamagrell to Marco de Canavezes | 426.26 mi (686.00 km) |
| Masamagrell to Marinha Grande | 457.61 mi (736.45 km) |
| Masamagrell to Massama | 482.26 mi (776.13 km) |
| Masamagrell to Matosinhos | 454.23 mi (731.01 km) |
| Masamagrell to Mealhada | 433.42 mi (697.52 km) |
| Masamagrell to Melgaco | 450.38 mi (724.81 km) |
| Masamagrell to Melres | 437.35 mi (703.84 km) |
| Masamagrell to Mira | 448.57 mi (721.90 km) |
| Masamagrell to Miranda do Corvo | 426.05 mi (685.66 km) |
| Masamagrell to Mirandela | 383.25 mi (616.78 km) |
| Masamagrell to Mogadouro | 357.09 mi (574.69 km) |
| Masamagrell to Moimenta da Beira | 395.98 mi (637.26 km) |
| Masamagrell to Moita | 468.07 mi (753.28 km) |
| Masamagrell to Moncao | 459.64 mi (739.72 km) |
