| Waltham Cross to Juprelle | 250.05 mi (402.41 km) |
| Waltham Cross to Jurbise | 189.56 mi (305.07 km) |
| Waltham Cross to Kalmthout | 194.49 mi (313.01 km) |
| Waltham Cross to Kampenhout | 204.45 mi (329.04 km) |
| Waltham Cross to Kapelle-op-den-Bos | 195.38 mi (314.43 km) |
| Waltham Cross to Kapellen | 193.76 mi (311.82 km) |
| Waltham Cross to Kasterlee | 216.54 mi (348.49 km) |
| Waltham Cross to Keerbergen | 206.71 mi (332.67 km) |
| Waltham Cross to Kinrooi | 251.51 mi (404.76 km) |
| Waltham Cross to Knokke-Heist | 144.71 mi (232.89 km) |
| Waltham Cross to Koekelare | 136.27 mi (219.31 km) |
| Waltham Cross to Koekelberg | 197.00 mi (317.04 km) |
| Waltham Cross to Koksijde | 122.55 mi (197.22 km) |
| Waltham Cross to Kontich | 196.91 mi (316.90 km) |
| Waltham Cross to Kortemark | 140.32 mi (225.83 km) |
