| Castalla to Kanjiza | 1,172.79 mi (1,887.42 km) |
| Castalla to Kikinda | 1,186.06 mi (1,908.78 km) |
| Castalla to Kladovo | 1,267.09 mi (2,039.18 km) |
| Castalla to Knic | 1,166.20 mi (1,876.82 km) |
| Castalla to Knjazevac | 1,246.07 mi (2,005.36 km) |
| Castalla to Koceljeva | 1,130.44 mi (1,819.27 km) |
| Castalla to Kosjeric | 1,128.38 mi (1,815.95 km) |
| Castalla to Kovacica | 1,180.15 mi (1,899.27 km) |
| Castalla to Kovin | 1,190.43 mi (1,915.81 km) |
| Castalla to Kragujevac | 1,178.36 mi (1,896.38 km) |
| Castalla to Kraljevo | 1,162.26 mi (1,870.48 km) |
| Castalla to Krupanj | 1,107.62 mi (1,782.54 km) |
| Castalla to Krusevac | 1,192.12 mi (1,918.53 km) |
| Castalla to Kucevo | 1,220.04 mi (1,963.47 km) |
| Castalla to Kula | 1,139.03 mi (1,833.09 km) |
