| Rancho Santa Margarita to Mangualde | 5,638.57 mi (9,074.41 km) |
| Rancho Santa Margarita to Marco de Canavezes | 5,598.10 mi (9,009.27 km) |
| Rancho Santa Margarita to Marinha Grande | 5,625.21 mi (9,052.91 km) |
| Rancho Santa Margarita to Massama | 5,651.97 mi (9,095.97 km) |
| Rancho Santa Margarita to Matosinhos | 5,575.32 mi (8,972.60 km) |
| Rancho Santa Margarita to Mealhada | 5,619.13 mi (9,043.11 km) |
| Rancho Santa Margarita to Melgaco | 5,554.25 mi (8,938.71 km) |
| Rancho Santa Margarita to Melres | 5,592.63 mi (9,000.46 km) |
| Rancho Santa Margarita to Mira | 5,605.17 mi (9,020.65 km) |
| Rancho Santa Margarita to Miranda do Corvo | 5,635.89 mi (9,070.09 km) |
| Rancho Santa Margarita to Mirandela | 5,625.15 mi (9,052.80 km) |
| Rancho Santa Margarita to Mogadouro | 5,650.59 mi (9,093.75 km) |
| Rancho Santa Margarita to Moimenta da Beira | 5,628.82 mi (9,058.71 km) |
| Rancho Santa Margarita to Moita | 5,668.96 mi (9,123.31 km) |
| Rancho Santa Margarita to Moncao | 5,547.34 mi (8,927.58 km) |
