| Grosse Pointe Park to Mangualde | 3,758.04 mi (6,047.98 km) |
| Grosse Pointe Park to Marco de Canavezes | 3,721.19 mi (5,988.67 km) |
| Grosse Pointe Park to Marinha Grande | 3,731.97 mi (6,006.02 km) |
| Grosse Pointe Park to Massama | 3,749.14 mi (6,033.66 km) |
| Grosse Pointe Park to Matosinhos | 3,695.92 mi (5,948.01 km) |
| Grosse Pointe Park to Mealhada | 3,733.51 mi (6,008.50 km) |
| Grosse Pointe Park to Melgaco | 3,685.87 mi (5,931.83 km) |
| Grosse Pointe Park to Melres | 3,713.49 mi (5,976.28 km) |
| Grosse Pointe Park to Mira | 3,718.75 mi (5,984.76 km) |
| Grosse Pointe Park to Miranda do Corvo | 3,748.27 mi (6,032.26 km) |
| Grosse Pointe Park to Mirandela | 3,755.65 mi (6,044.13 km) |
| Grosse Pointe Park to Mogadouro | 3,781.84 mi (6,086.28 km) |
| Grosse Pointe Park to Moimenta da Beira | 3,752.46 mi (6,038.99 km) |
| Grosse Pointe Park to Moita | 3,766.46 mi (6,061.54 km) |
| Grosse Pointe Park to Moncao | 3,677.53 mi (5,918.41 km) |
