| Castricum to Kikinda | 847.66 mi (1,364.18 km) |
| Castricum to Kladovo | 982.69 mi (1,581.49 km) |
| Castricum to Knic | 945.80 mi (1,522.12 km) |
| Castricum to Knjazevac | 1,027.34 mi (1,653.35 km) |
| Castricum to Koceljeva | 886.83 mi (1,427.21 km) |
| Castricum to Kosjeric | 913.67 mi (1,470.41 km) |
| Castricum to Kovacica | 886.09 mi (1,426.02 km) |
| Castricum to Kovin | 915.30 mi (1,473.03 km) |
| Castricum to Kragujevac | 948.99 mi (1,527.26 km) |
| Castricum to Kraljevo | 954.20 mi (1,535.64 km) |
| Castricum to Krupanj | 876.50 mi (1,410.59 km) |
| Castricum to Krusevac | 983.64 mi (1,583.01 km) |
| Castricum to Kucevo | 953.24 mi (1,534.09 km) |
| Castricum to Kula | 824.09 mi (1,326.25 km) |
| Castricum to Kursumlija | 1,003.37 mi (1,614.77 km) |
