| Rockledge to Mangualde | 4,125.27 mi (6,638.98 km) |
| Rockledge to Marco de Canavezes | 4,096.72 mi (6,593.03 km) |
| Rockledge to Marinha Grande | 4,078.00 mi (6,562.91 km) |
| Rockledge to Massama | 4,075.55 mi (6,558.97 km) |
| Rockledge to Matosinhos | 4,068.76 mi (6,548.03 km) |
| Rockledge to Mealhada | 4,093.33 mi (6,587.58 km) |
| Rockledge to Melgaco | 4,077.39 mi (6,561.92 km) |
| Rockledge to Melres | 4,085.72 mi (6,575.33 km) |
| Rockledge to Mira | 4,078.03 mi (6,562.96 km) |
| Rockledge to Miranda do Corvo | 4,103.65 mi (6,604.19 km) |
| Rockledge to Mirandela | 4,141.24 mi (6,664.68 km) |
| Rockledge to Mogadouro | 4,167.07 mi (6,706.25 km) |
| Rockledge to Moimenta da Beira | 4,127.04 mi (6,641.83 km) |
| Rockledge to Moita | 4,092.54 mi (6,586.31 km) |
| Rockledge to Moncao | 4,067.29 mi (6,545.66 km) |
