| Castelnaudary to Juprelle | 538.12 mi (866.01 km) |
| Castelnaudary to Jurbise | 507.15 mi (816.17 km) |
| Castelnaudary to Kalmthout | 569.44 mi (916.42 km) |
| Castelnaudary to Kampenhout | 540.57 mi (869.96 km) |
| Castelnaudary to Kapelle-op-den-Bos | 543.78 mi (875.13 km) |
| Castelnaudary to Kapellen | 564.63 mi (908.69 km) |
| Castelnaudary to Kasterlee | 565.62 mi (910.28 km) |
| Castelnaudary to Keerbergen | 545.58 mi (878.02 km) |
| Castelnaudary to Kinrooi | 569.02 mi (915.74 km) |
| Castelnaudary to Knokke-Heist | 557.83 mi (897.75 km) |
| Castelnaudary to Koekelare | 539.17 mi (867.71 km) |
| Castelnaudary to Koekelberg | 533.36 mi (858.35 km) |
| Castelnaudary to Koksijde | 538.66 mi (866.89 km) |
| Castelnaudary to Kontich | 552.45 mi (889.08 km) |
| Castelnaudary to Kortemark | 535.18 mi (861.29 km) |
