| Penarth to Montalegre | 698.70 mi (1,124.45 km) |
| Penarth to Montemor-o-Novo | 916.18 mi (1,474.45 km) |
| Penarth to Montemor-o-Velho | 821.69 mi (1,322.39 km) |
| Penarth to Montijo | 923.33 mi (1,485.96 km) |
| Penarth to Mortagua | 797.32 mi (1,283.16 km) |
| Penarth to Moura | 941.96 mi (1,515.95 km) |
| Penarth to Murtosa | 783.52 mi (1,260.96 km) |
| Penarth to Nazare | 865.09 mi (1,392.22 km) |
| Penarth to Nelas | 786.39 mi (1,265.58 km) |
| Penarth to Obidos | 882.49 mi (1,420.23 km) |
| Penarth to Odemira | 993.16 mi (1,598.34 km) |
| Penarth to Odivelas | 920.39 mi (1,481.22 km) |
| Penarth to Oeiras | 929.58 mi (1,496.02 km) |
| Penarth to Olhao | 1,021.20 mi (1,643.46 km) |
| Penarth to Oliveira de Azemeis | 774.01 mi (1,245.65 km) |
