| Srbobran to Mangualde | 1,423.77 mi (2,291.33 km) |
| Srbobran to Marco de Canavezes | 1,427.39 mi (2,297.16 km) |
| Srbobran to Marinha Grande | 1,504.27 mi (2,420.89 km) |
| Srbobran to Massama | 1,550.70 mi (2,495.61 km) |
| Srbobran to Matosinhos | 1,453.99 mi (2,339.98 km) |
| Srbobran to Mealhada | 1,463.05 mi (2,354.55 km) |
| Srbobran to Melgaco | 1,410.58 mi (2,270.10 km) |
| Srbobran to Melres | 1,442.46 mi (2,321.41 km) |
| Srbobran to Mira | 1,475.36 mi (2,374.36 km) |
| Srbobran to Miranda do Corvo | 1,465.31 mi (2,358.20 km) |
| Srbobran to Mirandela | 1,373.01 mi (2,209.65 km) |
| Srbobran to Mogadouro | 1,354.30 mi (2,179.54 km) |
| Srbobran to Moimenta da Beira | 1,406.69 mi (2,263.84 km) |
| Srbobran to Moita | 1,540.08 mi (2,478.52 km) |
| Srbobran to Moncao | 1,421.89 mi (2,288.31 km) |
