| Friendly to Juprelle | 3,917.46 mi (6,304.54 km) |
| Friendly to Jurbise | 3,857.11 mi (6,207.42 km) |
| Friendly to Kalmthout | 3,857.34 mi (6,207.79 km) |
| Friendly to Kampenhout | 3,871.84 mi (6,231.12 km) |
| Friendly to Kapelle-op-den-Bos | 3,862.53 mi (6,216.13 km) |
| Friendly to Kapellen | 3,857.67 mi (6,208.31 km) |
| Friendly to Kasterlee | 3,880.13 mi (6,244.47 km) |
| Friendly to Keerbergen | 3,873.56 mi (6,233.90 km) |
| Friendly to Kinrooi | 3,914.58 mi (6,299.92 km) |
| Friendly to Knokke-Heist | 3,810.82 mi (6,132.93 km) |
| Friendly to Koekelare | 3,804.47 mi (6,122.71 km) |
| Friendly to Koekelberg | 3,864.96 mi (6,220.06 km) |
| Friendly to Koksijde | 3,790.81 mi (6,100.72 km) |
| Friendly to Kontich | 3,862.95 mi (6,216.82 km) |
| Friendly to Kortemark | 3,808.58 mi (6,129.32 km) |
