| Oberhausen to Montemor-o-Novo | 1,148.52 mi (1,848.36 km) |
| Oberhausen to Montemor-o-Velho | 1,078.93 mi (1,736.37 km) |
| Oberhausen to Montijo | 1,167.81 mi (1,879.40 km) |
| Oberhausen to Mortagua | 1,049.78 mi (1,689.46 km) |
| Oberhausen to Moura | 1,155.44 mi (1,859.50 km) |
| Oberhausen to Murtosa | 1,046.82 mi (1,684.70 km) |
| Oberhausen to Nazare | 1,122.30 mi (1,806.17 km) |
| Oberhausen to Nelas | 1,032.83 mi (1,662.17 km) |
| Oberhausen to Obidos | 1,138.52 mi (1,832.27 km) |
| Oberhausen to Odemira | 1,222.34 mi (1,967.17 km) |
| Oberhausen to Odivelas | 1,170.66 mi (1,883.99 km) |
| Oberhausen to Oeiras | 1,180.98 mi (1,900.61 km) |
| Oberhausen to Olhao | 1,231.78 mi (1,982.36 km) |
| Oberhausen to Oliveira de Azemeis | 1,035.87 mi (1,667.07 km) |
| Oberhausen to Oliveira de Frades | 1,032.83 mi (1,662.17 km) |
