| Boucau to Kamenz | 901.24 mi (1,450.41 km) |
| Boucau to Kamp-Lintfort | 665.32 mi (1,070.73 km) |
| Boucau to Kandel | 600.30 mi (966.09 km) |
| Boucau to Kappeln | 924.32 mi (1,487.55 km) |
| Boucau to Karben | 669.25 mi (1,077.06 km) |
| Boucau to Karlsdorf-Neuthard | 615.07 mi (989.86 km) |
| Boucau to Karlsfeld | 701.23 mi (1,128.52 km) |
| Boucau to Karlsruhe | 604.83 mi (973.38 km) |
| Boucau to Kassel | 742.49 mi (1,194.92 km) |
| Boucau to Kaufbeuren | 656.27 mi (1,056.17 km) |
| Boucau to Kaufering | 672.88 mi (1,082.89 km) |
| Boucau to Kaufungen | 744.76 mi (1,198.58 km) |
| Boucau to Kehl | 565.42 mi (909.96 km) |
| Boucau to Kelheim | 737.63 mi (1,187.11 km) |
| Boucau to Kelkheim (Taunus) | 654.29 mi (1,052.97 km) |
