| Castel Gandolfo to Karditsa | 513.08 mi (825.73 km) |
| Castel Gandolfo to Kastoria | 456.10 mi (734.02 km) |
| Castel Gandolfo to Katerini | 523.25 mi (842.09 km) |
| Castel Gandolfo to Keratsini | 636.89 mi (1,024.98 km) |
| Castel Gandolfo to Kerkyra | 407.98 mi (656.58 km) |
| Castel Gandolfo to Kiato | 593.87 mi (955.74 km) |
| Castel Gandolfo to Kifisia | 642.90 mi (1,034.65 km) |
| Castel Gandolfo to Kilkis | 532.00 mi (856.16 km) |
| Castel Gandolfo to Komotini | 662.23 mi (1,065.75 km) |
| Castel Gandolfo to Korinthos | 604.74 mi (973.24 km) |
| Castel Gandolfo to Koropi | 651.42 mi (1,048.36 km) |
| Castel Gandolfo to Korydallos | 637.97 mi (1,026.71 km) |
| Castel Gandolfo to Kos | 848.46 mi (1,365.47 km) |
| Castel Gandolfo to Kozani | 486.12 mi (782.34 km) |
| Castel Gandolfo to Lagos | 642.36 mi (1,033.79 km) |
