| Nis to Montalegre | 1,506.17 mi (2,423.94 km) |
| Nis to Montemor-o-Novo | 1,594.28 mi (2,565.74 km) |
| Nis to Montemor-o-Velho | 1,582.44 mi (2,546.69 km) |
| Nis to Montijo | 1,627.78 mi (2,619.67 km) |
| Nis to Mortagua | 1,554.25 mi (2,501.33 km) |
| Nis to Moura | 1,569.11 mi (2,525.24 km) |
| Nis to Murtosa | 1,568.25 mi (2,523.86 km) |
| Nis to Nazare | 1,614.22 mi (2,597.83 km) |
| Nis to Nelas | 1,533.30 mi (2,467.61 km) |
| Nis to Obidos | 1,624.39 mi (2,614.20 km) |
| Nis to Odemira | 1,643.39 mi (2,644.78 km) |
| Nis to Odivelas | 1,639.18 mi (2,638.00 km) |
| Nis to Oeiras | 1,648.73 mi (2,653.37 km) |
| Nis to Olhao | 1,619.49 mi (2,606.31 km) |
| Nis to Oliveira de Azemeis | 1,558.21 mi (2,507.70 km) |
