| Ercolano to Marco de Canavezes | 1,170.44 mi (1,883.64 km) |
| Ercolano to Marinha Grande | 1,225.91 mi (1,972.91 km) |
| Ercolano to Massama | 1,258.54 mi (2,025.43 km) |
| Ercolano to Matosinhos | 1,198.87 mi (1,929.40 km) |
| Ercolano to Mealhada | 1,193.22 mi (1,920.30 km) |
| Ercolano to Melgaco | 1,171.21 mi (1,884.88 km) |
| Ercolano to Melres | 1,184.27 mi (1,905.90 km) |
| Ercolano to Mira | 1,207.42 mi (1,943.16 km) |
| Ercolano to Miranda do Corvo | 1,190.30 mi (1,915.60 km) |
| Ercolano to Mirandela | 1,118.45 mi (1,799.97 km) |
| Ercolano to Mogadouro | 1,095.34 mi (1,762.78 km) |
| Ercolano to Moimenta da Beira | 1,144.24 mi (1,841.48 km) |
| Ercolano to Moita | 1,245.09 mi (2,003.79 km) |
| Ercolano to Moncao | 1,182.30 mi (1,902.73 km) |
| Ercolano to Montalegre | 1,148.10 mi (1,847.69 km) |
