| Portsmouth to Nordwalde | 379.24 mi (610.33 km) |
| Portsmouth to Northeim | 483.02 mi (777.34 km) |
| Portsmouth to Norvenich | 337.70 mi (543.48 km) |
| Portsmouth to Nossen | 625.78 mi (1,007.10 km) |
| Portsmouth to Nottuln | 372.07 mi (598.79 km) |
| Portsmouth to Numbrecht | 376.24 mi (605.50 km) |
| Portsmouth to Nuremberg | 546.19 mi (879.00 km) |
| Portsmouth to Nurtingen | 488.60 mi (786.33 km) |
| Portsmouth to Nussloch | 445.38 mi (716.76 km) |
| Portsmouth to Ober-Ramstadt | 438.81 mi (706.20 km) |
| Portsmouth to Oberasbach | 541.56 mi (871.56 km) |
| Portsmouth to Oberderdingen | 455.60 mi (733.22 km) |
| Portsmouth to Oberhaching | 600.40 mi (966.25 km) |
| Portsmouth to Oberhausen | 348.00 mi (560.05 km) |
| Portsmouth to Oberhausen-Rheinhausen | 437.69 mi (704.40 km) |
