| Castleton to Juprelle | 382.02 mi (614.80 km) |
| Castleton to Jurbise | 334.35 mi (538.08 km) |
| Castleton to Kalmthout | 318.13 mi (511.98 km) |
| Castleton to Kampenhout | 337.92 mi (543.82 km) |
| Castleton to Kapelle-op-den-Bos | 328.41 mi (528.53 km) |
| Castleton to Kapellen | 319.31 mi (513.89 km) |
| Castleton to Kasterlee | 340.75 mi (548.39 km) |
| Castleton to Keerbergen | 338.38 mi (544.56 km) |
| Castleton to Kinrooi | 373.92 mi (601.76 km) |
| Castleton to Knokke-Heist | 277.35 mi (446.35 km) |
| Castleton to Koekelare | 277.69 mi (446.89 km) |
| Castleton to Koekelberg | 333.35 mi (536.47 km) |
| Castleton to Koksijde | 266.49 mi (428.87 km) |
| Castleton to Kontich | 326.82 mi (525.96 km) |
| Castleton to Kortemark | 282.59 mi (454.78 km) |
