| Bad Harzburg to Juprelle | 231.61 mi (372.74 km) |
| Bad Harzburg to Jurbise | 301.55 mi (485.30 km) |
| Bad Harzburg to Kalmthout | 263.59 mi (424.21 km) |
| Bad Harzburg to Kampenhout | 267.04 mi (429.76 km) |
| Bad Harzburg to Kapelle-op-den-Bos | 273.29 mi (439.82 km) |
| Bad Harzburg to Kapellen | 265.83 mi (427.82 km) |
| Bad Harzburg to Kasterlee | 244.89 mi (394.11 km) |
| Bad Harzburg to Keerbergen | 262.45 mi (422.38 km) |
| Bad Harzburg to Kinrooi | 213.44 mi (343.50 km) |
| Bad Harzburg to Knokke-Heist | 314.24 mi (505.72 km) |
| Bad Harzburg to Koekelare | 330.59 mi (532.04 km) |
| Bad Harzburg to Koekelberg | 277.55 mi (446.67 km) |
| Bad Harzburg to Koksijde | 344.46 mi (554.36 km) |
| Bad Harzburg to Kontich | 267.80 mi (430.98 km) |
| Bad Harzburg to Kortemark | 328.83 mi (529.20 km) |
