| Portimao to Mouscron | 1,103.59 mi (1,776.06 km) |
| Portimao to Namur | 1,134.25 mi (1,825.39 km) |
| Portimao to Neder-Over-Heembeek | 1,143.71 mi (1,840.62 km) |
| Portimao to Neerpelt | 1,190.53 mi (1,915.97 km) |
| Portimao to Nevele | 1,128.90 mi (1,816.79 km) |
| Portimao to Niel | 1,154.08 mi (1,857.32 km) |
| Portimao to Nieuwpoort | 1,113.53 mi (1,792.06 km) |
| Portimao to Nijlen | 1,165.33 mi (1,875.42 km) |
| Portimao to Ninove | 1,130.18 mi (1,818.84 km) |
| Portimao to Nivelles | 1,124.87 mi (1,810.30 km) |
| Portimao to Olen | 1,169.90 mi (1,882.77 km) |
| Portimao to Oostakker | 1,138.21 mi (1,831.77 km) |
| Portimao to Oosterzele | 1,130.80 mi (1,819.85 km) |
| Portimao to Oostkamp | 1,127.68 mi (1,814.82 km) |
| Portimao to Opglabbeek | 1,185.21 mi (1,907.41 km) |
