| Portchester to Montalegre | 699.04 mi (1,125.00 km) |
| Portchester to Montemor-o-Novo | 910.50 mi (1,465.30 km) |
| Portchester to Montemor-o-Velho | 822.49 mi (1,323.66 km) |
| Portchester to Montijo | 921.49 mi (1,482.99 km) |
| Portchester to Mortagua | 796.16 mi (1,281.30 km) |
| Portchester to Moura | 931.01 mi (1,498.32 km) |
| Portchester to Murtosa | 785.71 mi (1,264.48 km) |
| Portchester to Nazare | 866.51 mi (1,394.51 km) |
| Portchester to Nelas | 783.10 mi (1,260.28 km) |
| Portchester to Obidos | 883.77 mi (1,422.29 km) |
| Portchester to Odemira | 987.51 mi (1,589.25 km) |
| Portchester to Odivelas | 920.33 mi (1,481.13 km) |
| Portchester to Oeiras | 930.00 mi (1,496.69 km) |
| Portchester to Olhao | 1,010.43 mi (1,626.12 km) |
| Portchester to Oliveira de Azemeis | 775.56 mi (1,248.14 km) |
