| Middelharnis to Montemor-o-Novo | 1,084.33 mi (1,745.07 km) |
| Middelharnis to Montemor-o-Velho | 1,007.66 mi (1,621.67 km) |
| Middelharnis to Montijo | 1,100.79 mi (1,771.56 km) |
| Middelharnis to Mortagua | 979.29 mi (1,576.02 km) |
| Middelharnis to Moura | 1,096.11 mi (1,764.02 km) |
| Middelharnis to Murtosa | 973.64 mi (1,566.92 km) |
| Middelharnis to Nazare | 1,051.57 mi (1,692.34 km) |
| Middelharnis to Nelas | 963.58 mi (1,550.73 km) |
| Middelharnis to Obidos | 1,068.28 mi (1,719.23 km) |
| Middelharnis to Odemira | 1,159.81 mi (1,866.53 km) |
| Middelharnis to Odivelas | 1,102.22 mi (1,773.86 km) |
| Middelharnis to Oeiras | 1,112.38 mi (1,790.20 km) |
| Middelharnis to Olhao | 1,174.10 mi (1,889.53 km) |
| Middelharnis to Oliveira de Azemeis | 962.88 mi (1,549.61 km) |
| Middelharnis to Oliveira de Frades | 961.46 mi (1,547.32 km) |
