| Castel Gandolfo to Kelkheim (Taunus) | 613.65 mi (987.57 km) |
| Castel Gandolfo to Kelsterbach | 607.46 mi (977.60 km) |
| Castel Gandolfo to Kemberg | 693.45 mi (1,116.00 km) |
| Castel Gandolfo to Kempen | 726.94 mi (1,169.89 km) |
| Castel Gandolfo to Kempten | 429.15 mi (690.65 km) |
| Castel Gandolfo to Kenzingen | 504.99 mi (812.71 km) |
| Castel Gandolfo to Kerpen | 691.03 mi (1,112.11 km) |
| Castel Gandolfo to Ketsch | 562.64 mi (905.48 km) |
| Castel Gandolfo to Kevelaer | 743.64 mi (1,196.77 km) |
| Castel Gandolfo to Kiel | 876.52 mi (1,410.62 km) |
| Castel Gandolfo to Kierspe | 691.84 mi (1,113.40 km) |
| Castel Gandolfo to Kirchhain | 651.33 mi (1,048.21 km) |
| Castel Gandolfo to Kirchheim bei Munchen | 446.40 mi (718.40 km) |
| Castel Gandolfo to Kirchheim unter Teck | 501.54 mi (807.15 km) |
| Castel Gandolfo to Kirchhundem | 681.54 mi (1,096.84 km) |
