| Balderton to Mangualde | 920.44 mi (1,481.30 km) |
| Balderton to Marco de Canavezes | 889.43 mi (1,431.41 km) |
| Balderton to Marinha Grande | 996.59 mi (1,603.85 km) |
| Balderton to Massama | 1,067.35 mi (1,717.73 km) |
| Balderton to Matosinhos | 899.65 mi (1,447.85 km) |
| Balderton to Mealhada | 946.74 mi (1,523.63 km) |
| Balderton to Melgaco | 831.47 mi (1,338.11 km) |
| Balderton to Melres | 901.53 mi (1,450.88 km) |
| Balderton to Mira | 948.64 mi (1,526.68 km) |
| Balderton to Miranda do Corvo | 963.14 mi (1,550.02 km) |
| Balderton to Mirandela | 853.14 mi (1,373.00 km) |
| Balderton to Mogadouro | 855.88 mi (1,377.41 km) |
| Balderton to Moimenta da Beira | 893.39 mi (1,437.77 km) |
| Balderton to Moita | 1,069.17 mi (1,720.66 km) |
| Balderton to Moncao | 838.39 mi (1,349.26 km) |
