| Castelldefels to Kamen | 761.64 mi (1,225.74 km) |
| Castelldefels to Kamenz | 898.36 mi (1,445.78 km) |
| Castelldefels to Kamp-Lintfort | 738.40 mi (1,188.33 km) |
| Castelldefels to Kandel | 618.00 mi (994.58 km) |
| Castelldefels to Kappeln | 993.58 mi (1,599.01 km) |
| Castelldefels to Karben | 699.14 mi (1,125.16 km) |
| Castelldefels to Karlsdorf-Neuthard | 629.40 mi (1,012.93 km) |
| Castelldefels to Karlsfeld | 667.29 mi (1,073.90 km) |
| Castelldefels to Karlsruhe | 618.59 mi (995.52 km) |
| Castelldefels to Kassel | 779.88 mi (1,255.09 km) |
| Castelldefels to Kaufbeuren | 622.93 mi (1,002.50 km) |
| Castelldefels to Kaufering | 641.36 mi (1,032.16 km) |
| Castelldefels to Kaufungen | 780.45 mi (1,256.02 km) |
| Castelldefels to Kehl | 578.47 mi (930.96 km) |
| Castelldefels to Kelheim | 713.72 mi (1,148.63 km) |
