| Frankfort to Juprelle | 4,258.37 mi (6,853.19 km) |
| Frankfort to Jurbise | 4,201.10 mi (6,761.01 km) |
| Frankfort to Kalmthout | 4,196.46 mi (6,753.55 km) |
| Frankfort to Kampenhout | 4,213.02 mi (6,780.20 km) |
| Frankfort to Kapelle-op-den-Bos | 4,203.58 mi (6,765.01 km) |
| Frankfort to Kapellen | 4,197.16 mi (6,754.68 km) |
| Frankfort to Kasterlee | 4,219.26 mi (6,790.24 km) |
| Frankfort to Keerbergen | 4,214.33 mi (6,782.31 km) |
| Frankfort to Kinrooi | 4,253.14 mi (6,844.76 km) |
| Frankfort to Knokke-Heist | 4,151.71 mi (6,681.53 km) |
| Frankfort to Koekelare | 4,147.00 mi (6,673.95 km) |
| Frankfort to Koekelberg | 4,206.80 mi (6,770.19 km) |
| Frankfort to Koksijde | 4,133.72 mi (6,652.58 km) |
| Frankfort to Kontich | 4,203.33 mi (6,764.60 km) |
| Frankfort to Kortemark | 4,151.33 mi (6,680.93 km) |
