| Grosse Pointe Park to Montalegre | 3,716.89 mi (5,981.75 km) |
| Grosse Pointe Park to Montemor-o-Novo | 3,802.48 mi (6,119.50 km) |
| Grosse Pointe Park to Montemor-o-Velho | 3,729.83 mi (6,002.58 km) |
| Grosse Pointe Park to Montijo | 3,769.25 mi (6,066.03 km) |
| Grosse Pointe Park to Mortagua | 3,741.89 mi (6,021.99 km) |
| Grosse Pointe Park to Moura | 3,856.27 mi (6,206.06 km) |
| Grosse Pointe Park to Murtosa | 3,713.58 mi (5,976.43 km) |
| Grosse Pointe Park to Nazare | 3,730.72 mi (6,004.01 km) |
| Grosse Pointe Park to Nelas | 3,756.83 mi (6,046.04 km) |
| Grosse Pointe Park to Obidos | 3,734.50 mi (6,010.10 km) |
| Grosse Pointe Park to Odemira | 3,819.52 mi (6,146.92 km) |
| Grosse Pointe Park to Odivelas | 3,752.49 mi (6,039.05 km) |
| Grosse Pointe Park to Oeiras | 3,749.65 mi (6,034.47 km) |
| Grosse Pointe Park to Olhao | 3,876.56 mi (6,238.72 km) |
| Grosse Pointe Park to Oliveira de Azemeis | 3,717.41 mi (5,982.59 km) |
