| Tulcea to Montalegre | 1,832.51 mi (2,949.14 km) |
| Tulcea to Montemor-o-Novo | 1,937.83 mi (3,118.64 km) |
| Tulcea to Montemor-o-Velho | 1,917.54 mi (3,085.98 km) |
| Tulcea to Montijo | 1,970.12 mi (3,170.60 km) |
| Tulcea to Mortagua | 1,888.56 mi (3,039.34 km) |
| Tulcea to Moura | 1,916.14 mi (3,083.73 km) |
| Tulcea to Murtosa | 1,900.17 mi (3,058.04 km) |
| Tulcea to Nazare | 1,951.76 mi (3,141.06 km) |
| Tulcea to Nelas | 1,867.73 mi (3,005.83 km) |
| Tulcea to Obidos | 1,963.03 mi (3,159.19 km) |
| Tulcea to Odemira | 1,990.90 mi (3,204.04 km) |
| Tulcea to Odivelas | 1,980.57 mi (3,187.41 km) |
| Tulcea to Oeiras | 1,990.41 mi (3,203.25 km) |
| Tulcea to Olhao | 1,970.29 mi (3,170.88 km) |
| Tulcea to Oliveira de Azemeis | 1,889.75 mi (3,041.25 km) |
