| Portimao to Niederzier | 1,202.64 mi (1,935.47 km) |
| Portimao to Niefern-Oschelbronn | 1,189.73 mi (1,914.69 km) |
| Portimao to Nierstein | 1,214.84 mi (1,955.09 km) |
| Portimao to Niesky | 1,503.27 mi (2,419.27 km) |
| Portimao to Nittenau | 1,331.69 mi (2,143.14 km) |
| Portimao to Nittendorf | 1,313.55 mi (2,113.95 km) |
| Portimao to Nohfelden | 1,161.72 mi (1,869.61 km) |
| Portimao to Norden | 1,363.49 mi (2,194.33 km) |
| Portimao to Nordenham | 1,392.58 mi (2,241.14 km) |
| Portimao to Norderstedt | 1,446.73 mi (2,328.29 km) |
| Portimao to Nordhausen | 1,369.57 mi (2,204.11 km) |
| Portimao to Nordhorn | 1,298.80 mi (2,090.22 km) |
| Portimao to Nordkirchen | 1,276.92 mi (2,055.01 km) |
| Portimao to Nordlingen | 1,250.61 mi (2,012.67 km) |
| Portimao to Nordstemmen | 1,366.34 mi (2,198.92 km) |
