| Porsgrunn to Kamen | 525.95 mi (846.44 km) |
| Porsgrunn to Kamenz | 568.97 mi (915.67 km) |
| Porsgrunn to Kamp-Lintfort | 540.66 mi (870.10 km) |
| Porsgrunn to Kandel | 695.81 mi (1,119.80 km) |
| Porsgrunn to Kappeln | 307.87 mi (495.47 km) |
| Porsgrunn to Karben | 614.92 mi (989.62 km) |
| Porsgrunn to Karlsdorf-Neuthard | 691.08 mi (1,112.19 km) |
| Porsgrunn to Karlsfeld | 756.40 mi (1,217.31 km) |
| Porsgrunn to Karlsruhe | 700.26 mi (1,126.95 km) |
| Porsgrunn to Kassel | 538.98 mi (867.40 km) |
| Porsgrunn to Kaufbeuren | 777.19 mi (1,250.77 km) |
| Porsgrunn to Kaufering | 763.74 mi (1,229.13 km) |
| Porsgrunn to Kaufungen | 541.32 mi (871.18 km) |
| Porsgrunn to Kehl | 732.86 mi (1,179.42 km) |
| Porsgrunn to Kelheim | 710.00 mi (1,142.63 km) |
