| Sinalunga to Marco de Canavezes | 1,024.89 mi (1,649.40 km) |
| Sinalunga to Marinha Grande | 1,093.18 mi (1,759.31 km) |
| Sinalunga to Massama | 1,134.77 mi (1,826.24 km) |
| Sinalunga to Matosinhos | 1,052.58 mi (1,693.97 km) |
| Sinalunga to Mealhada | 1,055.15 mi (1,698.09 km) |
| Sinalunga to Melgaco | 1,016.50 mi (1,635.91 km) |
| Sinalunga to Melres | 1,039.52 mi (1,672.95 km) |
| Sinalunga to Mira | 1,068.36 mi (1,719.36 km) |
| Sinalunga to Miranda do Corvo | 1,055.28 mi (1,698.31 km) |
| Sinalunga to Mirandela | 971.11 mi (1,562.85 km) |
| Sinalunga to Mogadouro | 950.19 mi (1,529.18 km) |
| Sinalunga to Moimenta da Beira | 1,001.51 mi (1,611.77 km) |
| Sinalunga to Moita | 1,123.12 mi (1,807.49 km) |
| Sinalunga to Moncao | 1,027.81 mi (1,654.11 km) |
| Sinalunga to Montalegre | 996.67 mi (1,603.99 km) |
