| Tilehurst to Montalegre | 737.97 mi (1,187.65 km) |
| Tilehurst to Montemor-o-Novo | 950.62 mi (1,529.87 km) |
| Tilehurst to Montemor-o-Velho | 861.49 mi (1,386.43 km) |
| Tilehurst to Montijo | 961.02 mi (1,546.61 km) |
| Tilehurst to Mortagua | 835.47 mi (1,344.55 km) |
| Tilehurst to Moura | 971.86 mi (1,564.06 km) |
| Tilehurst to Murtosa | 824.43 mi (1,326.79 km) |
| Tilehurst to Nazare | 905.45 mi (1,457.17 km) |
| Tilehurst to Nelas | 822.74 mi (1,324.08 km) |
| Tilehurst to Obidos | 922.75 mi (1,485.02 km) |
| Tilehurst to Odemira | 1,027.68 mi (1,653.89 km) |
| Tilehurst to Odivelas | 959.57 mi (1,544.28 km) |
| Tilehurst to Oeiras | 969.16 mi (1,559.72 km) |
| Tilehurst to Olhao | 1,051.30 mi (1,691.90 km) |
| Tilehurst to Oliveira de Azemeis | 814.38 mi (1,310.61 km) |
