| Porsgrunn to Nagold | 730.96 mi (1,176.37 km) |
| Porsgrunn to Nalbach | 682.57 mi (1,098.49 km) |
| Porsgrunn to Nauen | 466.56 mi (750.86 km) |
| Porsgrunn to Nauheim | 635.61 mi (1,022.92 km) |
| Porsgrunn to Naumburg | 556.55 mi (895.68 km) |
| Porsgrunn to Naunhof | 553.17 mi (890.25 km) |
| Porsgrunn to Neckargemund | 672.70 mi (1,082.60 km) |
| Porsgrunn to Neckarsulm | 685.95 mi (1,103.93 km) |
| Porsgrunn to Nersingen | 738.57 mi (1,188.61 km) |
| Porsgrunn to Netphen | 570.16 mi (917.59 km) |
| Porsgrunn to Nettetal | 555.34 mi (893.73 km) |
| Porsgrunn to Neu Bleckede | 403.73 mi (649.73 km) |
| Porsgrunn to Neu Isenburg | 627.66 mi (1,010.12 km) |
| Porsgrunn to Neu Wulmstorf | 390.58 mi (628.58 km) |
| Porsgrunn to Neu-Anspach | 611.43 mi (984.01 km) |
