| Tarquinia to Montemor-o-Novo | 1,076.45 mi (1,732.38 km) |
| Tarquinia to Montemor-o-Velho | 1,069.52 mi (1,721.22 km) |
| Tarquinia to Montijo | 1,110.42 mi (1,787.05 km) |
| Tarquinia to Mortagua | 1,042.07 mi (1,677.04 km) |
| Tarquinia to Moura | 1,050.26 mi (1,690.23 km) |
| Tarquinia to Murtosa | 1,057.88 mi (1,702.50 km) |
| Tarquinia to Nazare | 1,099.50 mi (1,769.47 km) |
| Tarquinia to Nelas | 1,021.14 mi (1,643.36 km) |
| Tarquinia to Obidos | 1,108.96 mi (1,784.69 km) |
| Tarquinia to Odemira | 1,124.42 mi (1,809.58 km) |
| Tarquinia to Odivelas | 1,122.23 mi (1,806.05 km) |
| Tarquinia to Oeiras | 1,131.63 mi (1,821.18 km) |
| Tarquinia to Olhao | 1,100.40 mi (1,770.93 km) |
| Tarquinia to Oliveira de Azemeis | 1,048.23 mi (1,686.97 km) |
| Tarquinia to Oliveira de Frades | 1,035.12 mi (1,665.86 km) |
