| Castle Rock to Juprelle | 4,926.59 mi (7,928.59 km) |
| Castle Rock to Jurbise | 4,880.65 mi (7,854.65 km) |
| Castle Rock to Kalmthout | 4,861.53 mi (7,823.88 km) |
| Castle Rock to Kampenhout | 4,883.67 mi (7,859.50 km) |
| Castle Rock to Kapelle-op-den-Bos | 4,874.21 mi (7,844.28 km) |
| Castle Rock to Kapellen | 4,863.33 mi (7,826.77 km) |
| Castle Rock to Kasterlee | 4,883.51 mi (7,859.25 km) |
| Castle Rock to Keerbergen | 4,883.69 mi (7,859.55 km) |
| Castle Rock to Kinrooi | 4,914.42 mi (7,909.00 km) |
| Castle Rock to Knokke-Heist | 4,823.72 mi (7,763.03 km) |
| Castle Rock to Koekelare | 4,824.10 mi (7,763.64 km) |
| Castle Rock to Koekelberg | 4,879.65 mi (7,853.03 km) |
| Castle Rock to Koksijde | 4,812.45 mi (7,744.88 km) |
| Castle Rock to Kontich | 4,871.91 mi (7,840.58 km) |
| Castle Rock to Kortemark | 4,828.94 mi (7,771.43 km) |
