| Castano Primo to Karditsa | 793.36 mi (1,276.79 km) |
| Castano Primo to Kastoria | 719.60 mi (1,158.08 km) |
| Castano Primo to Katerini | 783.57 mi (1,261.03 km) |
| Castano Primo to Keratsini | 925.19 mi (1,488.95 km) |
| Castano Primo to Kerkyra | 698.68 mi (1,124.42 km) |
| Castano Primo to Kiato | 886.97 mi (1,427.44 km) |
| Castano Primo to Kifisia | 928.61 mi (1,494.46 km) |
| Castano Primo to Kilkis | 775.00 mi (1,247.25 km) |
| Castano Primo to Komotini | 889.55 mi (1,431.59 km) |
| Castano Primo to Korinthos | 897.56 mi (1,444.48 km) |
| Castano Primo to Koropi | 938.95 mi (1,511.09 km) |
| Castano Primo to Korydallos | 925.87 mi (1,490.05 km) |
| Castano Primo to Kos | 1,128.56 mi (1,816.24 km) |
| Castano Primo to Kozani | 750.54 mi (1,207.88 km) |
| Castano Primo to Lagos | 872.22 mi (1,403.71 km) |
