| Sirvintos to Marco de Canavezes | 1,777.82 mi (2,861.13 km) |
| Sirvintos to Marinha Grande | 1,876.75 mi (3,020.34 km) |
| Sirvintos to Massama | 1,938.90 mi (3,120.36 km) |
| Sirvintos to Matosinhos | 1,798.49 mi (2,894.39 km) |
| Sirvintos to Mealhada | 1,827.69 mi (2,941.39 km) |
| Sirvintos to Melgaco | 1,738.15 mi (2,797.28 km) |
| Sirvintos to Melres | 1,792.79 mi (2,885.21 km) |
| Sirvintos to Mira | 1,835.84 mi (2,954.50 km) |
| Sirvintos to Miranda do Corvo | 1,837.22 mi (2,956.72 km) |
| Sirvintos to Mirandela | 1,727.13 mi (2,779.55 km) |
| Sirvintos to Mogadouro | 1,717.11 mi (2,763.42 km) |
| Sirvintos to Moimenta da Beira | 1,767.56 mi (2,844.61 km) |
| Sirvintos to Moita | 1,933.53 mi (3,111.72 km) |
| Sirvintos to Moncao | 1,748.25 mi (2,813.54 km) |
| Sirvintos to Montalegre | 1,733.97 mi (2,790.55 km) |
