| Castel Goffredo to Marco de Canavezes | 977.05 mi (1,572.41 km) |
| Castel Goffredo to Marinha Grande | 1,056.74 mi (1,700.66 km) |
| Castel Goffredo to Massama | 1,106.04 mi (1,780.00 km) |
| Castel Goffredo to Matosinhos | 1,003.38 mi (1,614.78 km) |
| Castel Goffredo to Mealhada | 1,014.24 mi (1,632.27 km) |
| Castel Goffredo to Melgaco | 959.15 mi (1,543.60 km) |
| Castel Goffredo to Melres | 992.19 mi (1,596.77 km) |
| Castel Goffredo to Mira | 1,026.19 mi (1,651.49 km) |
| Castel Goffredo to Miranda do Corvo | 1,017.41 mi (1,637.36 km) |
| Castel Goffredo to Mirandela | 922.66 mi (1,484.87 km) |
| Castel Goffredo to Mogadouro | 904.56 mi (1,455.75 km) |
| Castel Goffredo to Moimenta da Beira | 957.11 mi (1,540.32 km) |
| Castel Goffredo to Moita | 1,096.30 mi (1,764.32 km) |
| Castel Goffredo to Moncao | 970.46 mi (1,561.80 km) |
| Castel Goffredo to Montalegre | 943.28 mi (1,518.06 km) |
