| Portimao to Nevers | 905.56 mi (1,457.36 km) |
| Portimao to Nice | 944.84 mi (1,520.58 km) |
| Portimao to Nimes | 819.36 mi (1,318.63 km) |
| Portimao to Niort | 758.40 mi (1,220.53 km) |
| Portimao to Noeux-les-Mines | 1,075.24 mi (1,730.43 km) |
| Portimao to Nogent-le-Rotrou | 905.59 mi (1,457.41 km) |
| Portimao to Nogent-sur-Marne | 979.56 mi (1,576.44 km) |
| Portimao to Nogent-sur-Oise | 1,003.01 mi (1,614.20 km) |
| Portimao to Noisiel | 984.62 mi (1,584.59 km) |
| Portimao to Noisy-le-Grand | 982.08 mi (1,580.51 km) |
| Portimao to Noisy-le-Sec | 981.44 mi (1,579.47 km) |
| Portimao to Nort-sur-Erdre | 796.81 mi (1,282.33 km) |
| Portimao to Notre-Dame-de-Gravenchon | 966.92 mi (1,556.10 km) |
| Portimao to Noyon | 1,034.30 mi (1,664.55 km) |
| Portimao to Obernai | 1,123.49 mi (1,808.09 km) |
