| Rancho San Diego to Mangualde | 5,651.66 mi (9,095.47 km) |
| Rancho San Diego to Marco de Canavezes | 5,611.54 mi (9,030.90 km) |
| Rancho San Diego to Marinha Grande | 5,636.78 mi (9,071.52 km) |
| Rancho San Diego to Massama | 5,662.34 mi (9,112.66 km) |
| Rancho San Diego to Matosinhos | 5,588.45 mi (8,993.74 km) |
| Rancho San Diego to Mealhada | 5,631.60 mi (9,063.19 km) |
| Rancho San Diego to Melgaco | 5,568.56 mi (8,961.73 km) |
| Rancho San Diego to Melres | 5,605.81 mi (9,021.68 km) |
| Rancho San Diego to Mira | 5,617.53 mi (9,040.54 km) |
| Rancho San Diego to Miranda do Corvo | 5,648.15 mi (9,089.82 km) |
| Rancho San Diego to Mirandela | 5,639.43 mi (9,075.79 km) |
| Rancho San Diego to Mogadouro | 5,665.00 mi (9,116.93 km) |
| Rancho San Diego to Moimenta da Beira | 5,642.36 mi (9,080.51 km) |
| Rancho San Diego to Moita | 5,679.39 mi (9,140.10 km) |
| Rancho San Diego to Moncao | 5,561.49 mi (8,950.35 km) |
