| Niles to Montalegre | 3,948.93 mi (6,355.19 km) |
| Niles to Montemor-o-Novo | 4,039.96 mi (6,501.68 km) |
| Niles to Montemor-o-Velho | 3,965.30 mi (6,381.53 km) |
| Niles to Montijo | 4,007.13 mi (6,448.86 km) |
| Niles to Mortagua | 3,976.61 mi (6,399.74 km) |
| Niles to Moura | 4,093.98 mi (6,588.62 km) |
| Niles to Murtosa | 3,948.09 mi (6,353.84 km) |
| Niles to Nazare | 3,967.34 mi (6,384.81 km) |
| Niles to Nelas | 3,991.16 mi (6,423.14 km) |
| Niles to Obidos | 3,971.55 mi (6,391.59 km) |
| Niles to Odemira | 4,058.77 mi (6,531.96 km) |
| Niles to Odivelas | 3,990.40 mi (6,421.92 km) |
| Niles to Oeiras | 3,987.80 mi (6,417.74 km) |
| Niles to Olhao | 4,116.05 mi (6,624.15 km) |
| Niles to Oliveira de Azemeis | 3,951.63 mi (6,359.53 km) |
