| Nidderau to Montemor-o-Novo | 1,158.90 mi (1,865.06 km) |
| Nidderau to Montemor-o-Velho | 1,098.83 mi (1,768.39 km) |
| Nidderau to Montijo | 1,181.44 mi (1,901.34 km) |
| Nidderau to Mortagua | 1,069.04 mi (1,720.46 km) |
| Nidderau to Moura | 1,159.91 mi (1,866.69 km) |
| Nidderau to Murtosa | 1,069.52 mi (1,721.22 km) |
| Nidderau to Nazare | 1,141.03 mi (1,836.31 km) |
| Nidderau to Nelas | 1,050.76 mi (1,691.04 km) |
| Nidderau to Obidos | 1,156.47 mi (1,861.16 km) |
| Nidderau to Odemira | 1,229.98 mi (1,979.46 km) |
| Nidderau to Odivelas | 1,186.02 mi (1,908.72 km) |
| Nidderau to Oeiras | 1,196.46 mi (1,925.51 km) |
| Nidderau to Olhao | 1,233.52 mi (1,985.16 km) |
| Nidderau to Oliveira de Azemeis | 1,058.44 mi (1,703.39 km) |
| Nidderau to Oliveira de Frades | 1,053.40 mi (1,695.28 km) |
