| Castelleone to Juprelle | 422.30 mi (679.62 km) |
| Castelleone to Jurbise | 451.12 mi (726.01 km) |
| Castelleone to Kalmthout | 485.53 mi (781.39 km) |
| Castelleone to Kampenhout | 457.92 mi (736.95 km) |
| Castelleone to Kapelle-op-den-Bos | 466.68 mi (751.05 km) |
| Castelleone to Kapellen | 482.41 mi (776.36 km) |
| Castelleone to Kasterlee | 466.87 mi (751.35 km) |
| Castelleone to Keerbergen | 459.55 mi (739.57 km) |
| Castelleone to Kinrooi | 444.34 mi (715.09 km) |
| Castelleone to Knokke-Heist | 512.36 mi (824.57 km) |
| Castelleone to Koekelare | 507.33 mi (816.47 km) |
| Castelleone to Koekelberg | 458.98 mi (738.66 km) |
| Castelleone to Koksijde | 517.27 mi (832.46 km) |
| Castelleone to Kontich | 471.37 mi (758.60 km) |
| Castelleone to Kortemark | 502.26 mi (808.32 km) |
