| Caldicot to Mangualde | 795.70 mi (1,280.56 km) |
| Caldicot to Marco de Canavezes | 763.25 mi (1,228.33 km) |
| Caldicot to Marinha Grande | 870.13 mi (1,400.34 km) |
| Caldicot to Massama | 941.06 mi (1,514.49 km) |
| Caldicot to Matosinhos | 772.37 mi (1,243.01 km) |
| Caldicot to Mealhada | 820.68 mi (1,320.76 km) |
| Caldicot to Melgaco | 704.11 mi (1,133.15 km) |
| Caldicot to Melres | 774.94 mi (1,247.15 km) |
| Caldicot to Mira | 821.97 mi (1,322.83 km) |
| Caldicot to Miranda do Corvo | 837.58 mi (1,347.96 km) |
| Caldicot to Mirandela | 728.97 mi (1,173.17 km) |
| Caldicot to Mogadouro | 733.18 mi (1,179.93 km) |
| Caldicot to Moimenta da Beira | 768.64 mi (1,237.01 km) |
| Caldicot to Moita | 943.52 mi (1,518.44 km) |
| Caldicot to Moncao | 710.67 mi (1,143.72 km) |
