| Clay to Montalegre | 4,190.32 mi (6,743.66 km) |
| Clay to Montemor-o-Novo | 4,248.91 mi (6,837.97 km) |
| Clay to Montemor-o-Velho | 4,187.38 mi (6,738.94 km) |
| Clay to Montijo | 4,213.83 mi (6,781.51 km) |
| Clay to Mortagua | 4,202.92 mi (6,763.95 km) |
| Clay to Moura | 4,300.87 mi (6,921.58 km) |
| Clay to Murtosa | 4,175.92 mi (6,720.50 km) |
| Clay to Nazare | 4,182.45 mi (6,731.01 km) |
| Clay to Nelas | 4,219.64 mi (6,790.85 km) |
| Clay to Obidos | 4,183.94 mi (6,733.40 km) |
| Clay to Odemira | 4,255.71 mi (6,848.91 km) |
| Clay to Odivelas | 4,197.10 mi (6,754.58 km) |
| Clay to Oeiras | 4,192.93 mi (6,747.87 km) |
| Clay to Olhao | 4,310.72 mi (6,937.43 km) |
| Clay to Oliveira de Azemeis | 4,181.06 mi (6,728.77 km) |
