| Oldbury to Montalegre | 785.71 mi (1,264.48 km) |
| Oldbury to Montemor-o-Novo | 1,002.23 mi (1,612.94 km) |
| Oldbury to Montemor-o-Velho | 908.94 mi (1,462.79 km) |
| Oldbury to Montijo | 1,010.19 mi (1,625.74 km) |
| Oldbury to Mortagua | 884.18 mi (1,422.95 km) |
| Oldbury to Moura | 1,026.75 mi (1,652.39 km) |
| Oldbury to Murtosa | 870.96 mi (1,401.68 km) |
| Oldbury to Nazare | 952.48 mi (1,532.87 km) |
| Oldbury to Nelas | 872.81 mi (1,404.66 km) |
| Oldbury to Obidos | 969.87 mi (1,560.86 km) |
| Oldbury to Odemira | 1,079.29 mi (1,736.95 km) |
| Oldbury to Odivelas | 1,007.58 mi (1,621.54 km) |
| Oldbury to Oeiras | 1,016.86 mi (1,636.48 km) |
| Oldbury to Olhao | 1,106.11 mi (1,780.10 km) |
| Oldbury to Oliveira de Azemeis | 861.33 mi (1,386.18 km) |
