| Castle Rock to Karditsa | 6,041.52 mi (9,722.89 km) |
| Castle Rock to Kastoria | 5,957.91 mi (9,588.33 km) |
| Castle Rock to Katerini | 6,011.73 mi (9,674.95 km) |
| Castle Rock to Keratsini | 6,174.15 mi (9,936.34 km) |
| Castle Rock to Kerkyra | 5,960.88 mi (9,593.10 km) |
| Castle Rock to Kiato | 6,143.01 mi (9,886.22 km) |
| Castle Rock to Kifisia | 6,174.31 mi (9,936.60 km) |
| Castle Rock to Kilkis | 5,984.45 mi (9,631.05 km) |
| Castle Rock to Komotini | 6,057.94 mi (9,749.31 km) |
| Castle Rock to Korinthos | 6,152.85 mi (9,902.06 km) |
| Castle Rock to Koropi | 6,186.27 mi (9,955.85 km) |
| Castle Rock to Korydallos | 6,174.34 mi (9,936.64 km) |
| Castle Rock to Kos | 6,353.50 mi (10,224.97 km) |
| Castle Rock to Kozani | 5,986.57 mi (9,634.45 km) |
| Castle Rock to Lagos | 6,047.72 mi (9,732.86 km) |
