| Pianiga to Montemor-o-Novo | 1,135.10 mi (1,826.77 km) |
| Pianiga to Montemor-o-Velho | 1,106.89 mi (1,781.37 km) |
| Pianiga to Montijo | 1,165.63 mi (1,875.90 km) |
| Pianiga to Mortagua | 1,077.53 mi (1,734.11 km) |
| Pianiga to Moura | 1,118.83 mi (1,800.58 km) |
| Pianiga to Murtosa | 1,087.84 mi (1,750.70 km) |
| Pianiga to Nazare | 1,142.72 mi (1,839.03 km) |
| Pianiga to Nelas | 1,056.86 mi (1,700.85 km) |
| Pianiga to Obidos | 1,154.84 mi (1,858.54 km) |
| Pianiga to Odemira | 1,193.64 mi (1,920.98 km) |
| Pianiga to Odivelas | 1,174.95 mi (1,890.90 km) |
| Pianiga to Oeiras | 1,185.04 mi (1,907.14 km) |
| Pianiga to Olhao | 1,179.77 mi (1,898.66 km) |
| Pianiga to Oliveira de Azemeis | 1,077.26 mi (1,733.68 km) |
| Pianiga to Oliveira de Frades | 1,066.86 mi (1,716.95 km) |
