| Sigulda to Marco de Canavezes | 1,825.99 mi (2,938.65 km) |
| Sigulda to Marinha Grande | 1,927.82 mi (3,102.52 km) |
| Sigulda to Massama | 1,992.32 mi (3,206.32 km) |
| Sigulda to Matosinhos | 1,845.03 mi (2,969.29 km) |
| Sigulda to Mealhada | 1,877.94 mi (3,022.25 km) |
| Sigulda to Melgaco | 1,782.33 mi (2,868.38 km) |
| Sigulda to Melres | 1,840.66 mi (2,962.25 km) |
| Sigulda to Mira | 1,885.06 mi (3,033.72 km) |
| Sigulda to Miranda do Corvo | 1,888.82 mi (3,039.77 km) |
| Sigulda to Mirandela | 1,777.04 mi (2,859.88 km) |
| Sigulda to Mogadouro | 1,769.02 mi (2,846.96 km) |
| Sigulda to Moimenta da Beira | 1,818.10 mi (2,925.95 km) |
| Sigulda to Moita | 1,988.16 mi (3,199.63 km) |
| Sigulda to Moncao | 1,791.97 mi (2,883.90 km) |
| Sigulda to Montalegre | 1,780.73 mi (2,865.80 km) |
