| Castel Gandolfo to Kamen | 719.70 mi (1,158.24 km) |
| Castel Gandolfo to Kamenz | 661.31 mi (1,064.28 km) |
| Castel Gandolfo to Kamp-Lintfort | 733.13 mi (1,179.85 km) |
| Castel Gandolfo to Kandel | 550.72 mi (886.30 km) |
| Castel Gandolfo to Kappeln | 900.88 mi (1,449.83 km) |
| Castel Gandolfo to Karben | 614.99 mi (989.72 km) |
| Castel Gandolfo to Karlsdorf-Neuthard | 547.82 mi (881.63 km) |
| Castel Gandolfo to Karlsfeld | 450.74 mi (725.40 km) |
| Castel Gandolfo to Karlsruhe | 542.25 mi (872.67 km) |
| Castel Gandolfo to Kassel | 677.76 mi (1,090.75 km) |
| Castel Gandolfo to Kaufbeuren | 435.23 mi (700.44 km) |
| Castel Gandolfo to Kaufering | 446.24 mi (718.15 km) |
| Castel Gandolfo to Kaufungen | 674.20 mi (1,085.02 km) |
| Castel Gandolfo to Kehl | 526.55 mi (847.39 km) |
| Castel Gandolfo to Kelheim | 496.84 mi (799.59 km) |
