| Clay to Juprelle | 4,547.24 mi (7,318.07 km) |
| Clay to Jurbise | 4,488.19 mi (7,223.04 km) |
| Clay to Kalmthout | 4,486.26 mi (7,219.94 km) |
| Clay to Kampenhout | 4,501.70 mi (7,244.79 km) |
| Clay to Kapelle-op-den-Bos | 4,492.33 mi (7,229.70 km) |
| Clay to Kapellen | 4,486.76 mi (7,220.74 km) |
| Clay to Kasterlee | 4,509.07 mi (7,256.65 km) |
| Clay to Keerbergen | 4,503.25 mi (7,247.27 km) |
| Clay to Kinrooi | 4,543.29 mi (7,311.71 km) |
| Clay to Knokke-Heist | 4,440.51 mi (7,146.31 km) |
| Clay to Koekelare | 4,434.88 mi (7,137.26 km) |
| Clay to Koekelberg | 4,495.11 mi (7,234.19 km) |
| Clay to Koksijde | 4,421.38 mi (7,115.52 km) |
| Clay to Kontich | 4,492.45 mi (7,229.90 km) |
| Clay to Kortemark | 4,439.09 mi (7,144.03 km) |
