| Porthcawl to Kamen | 487.60 mi (784.71 km) |
| Porthcawl to Kamenz | 765.55 mi (1,232.04 km) |
| Porthcawl to Kamp-Lintfort | 439.46 mi (707.24 km) |
| Porthcawl to Kandel | 549.73 mi (884.71 km) |
| Porthcawl to Kappeln | 605.46 mi (974.39 km) |
| Porthcawl to Karben | 549.48 mi (884.30 km) |
| Porthcawl to Karlsdorf-Neuthard | 562.83 mi (905.79 km) |
| Porthcawl to Karlsfeld | 710.37 mi (1,143.23 km) |
| Porthcawl to Karlsruhe | 560.22 mi (901.59 km) |
| Porthcawl to Kassel | 567.85 mi (913.86 km) |
| Porthcawl to Kaufbeuren | 685.11 mi (1,102.57 km) |
| Porthcawl to Kaufering | 689.80 mi (1,110.13 km) |
| Porthcawl to Kaufungen | 573.30 mi (922.63 km) |
| Porthcawl to Kehl | 548.28 mi (882.38 km) |
| Porthcawl to Kelheim | 708.98 mi (1,140.99 km) |
