| Rostusa to Montemor-o-Novo | 1,528.77 mi (2,460.32 km) |
| Rostusa to Montemor-o-Velho | 1,525.47 mi (2,455.01 km) |
| Rostusa to Montijo | 1,563.38 mi (2,516.01 km) |
| Rostusa to Mortagua | 1,498.23 mi (2,411.16 km) |
| Rostusa to Moura | 1,499.90 mi (2,413.86 km) |
| Rostusa to Murtosa | 1,514.32 mi (2,437.07 km) |
| Rostusa to Nazare | 1,554.71 mi (2,502.06 km) |
| Rostusa to Nelas | 1,477.31 mi (2,377.51 km) |
| Rostusa to Obidos | 1,563.74 mi (2,516.59 km) |
| Rostusa to Odemira | 1,573.23 mi (2,531.88 km) |
| Rostusa to Odivelas | 1,575.68 mi (2,535.81 km) |
| Rostusa to Oeiras | 1,584.88 mi (2,550.62 km) |
| Rostusa to Olhao | 1,545.49 mi (2,487.23 km) |
| Rostusa to Oliveira de Azemeis | 1,504.71 mi (2,421.59 km) |
| Rostusa to Oliveira de Frades | 1,491.51 mi (2,400.35 km) |
