| Longmont to Juprelle | 4,892.17 mi (7,873.19 km) |
| Longmont to Jurbise | 4,846.88 mi (7,800.30 km) |
| Longmont to Kalmthout | 4,827.05 mi (7,768.38 km) |
| Longmont to Kampenhout | 4,849.43 mi (7,804.41 km) |
| Longmont to Kapelle-op-den-Bos | 4,839.99 mi (7,789.21 km) |
| Longmont to Kapellen | 4,828.89 mi (7,771.36 km) |
| Longmont to Kasterlee | 4,848.94 mi (7,803.62 km) |
| Longmont to Keerbergen | 4,849.39 mi (7,804.34 km) |
| Longmont to Kinrooi | 4,879.67 mi (7,853.06 km) |
| Longmont to Knokke-Heist | 4,789.65 mi (7,708.19 km) |
| Longmont to Koekelare | 4,790.29 mi (7,709.23 km) |
| Longmont to Koekelberg | 4,845.53 mi (7,798.13 km) |
| Longmont to Koksijde | 4,778.74 mi (7,690.64 km) |
| Longmont to Kontich | 4,837.59 mi (7,785.34 km) |
| Longmont to Kortemark | 4,795.15 mi (7,717.05 km) |
