| Castleford to Juprelle | 357.52 mi (575.37 km) |
| Castleford to Jurbise | 314.01 mi (505.34 km) |
| Castleford to Kalmthout | 292.81 mi (471.24 km) |
| Castleford to Kampenhout | 314.37 mi (505.93 km) |
| Castleford to Kapelle-op-den-Bos | 304.92 mi (490.73 km) |
| Castleford to Kapellen | 294.36 mi (473.73 km) |
| Castleford to Kasterlee | 315.16 mi (507.20 km) |
| Castleford to Keerbergen | 314.40 mi (505.98 km) |
| Castleford to Kinrooi | 347.51 mi (559.27 km) |
| Castleford to Knokke-Heist | 254.87 mi (410.18 km) |
| Castleford to Koekelare | 257.43 mi (414.30 km) |
| Castleford to Koekelberg | 310.59 mi (499.84 km) |
| Castleford to Koksijde | 247.27 mi (397.94 km) |
| Castleford to Kontich | 302.64 mi (487.05 km) |
| Castleford to Kortemark | 262.46 mi (422.39 km) |
