| Crystal to Juprelle | 4,243.14 mi (6,828.68 km) |
| Crystal to Jurbise | 4,194.69 mi (6,750.71 km) |
| Crystal to Kalmthout | 4,178.45 mi (6,724.56 km) |
| Crystal to Kampenhout | 4,199.52 mi (6,758.48 km) |
| Crystal to Kapelle-op-den-Bos | 4,190.03 mi (6,743.20 km) |
| Crystal to Kapellen | 4,180.02 mi (6,727.09 km) |
| Crystal to Kasterlee | 4,200.69 mi (6,760.36 km) |
| Crystal to Keerbergen | 4,199.81 mi (6,758.95 km) |
| Crystal to Kinrooi | 4,232.38 mi (6,811.36 km) |
| Crystal to Knokke-Heist | 4,139.03 mi (6,661.13 km) |
| Crystal to Koekelare | 4,138.39 mi (6,660.09 km) |
| Crystal to Koekelberg | 4,195.03 mi (6,751.26 km) |
| Crystal to Koksijde | 4,126.36 mi (6,640.73 km) |
| Crystal to Kontich | 4,188.14 mi (6,740.15 km) |
| Crystal to Kortemark | 4,143.15 mi (6,667.75 km) |
