| Hardenberg to Kelkheim (Taunus) | 185.51 mi (298.55 km) |
| Hardenberg to Kelsterbach | 191.79 mi (308.66 km) |
| Hardenberg to Kemberg | 260.53 mi (419.29 km) |
| Hardenberg to Kempen | 83.40 mi (134.22 km) |
| Hardenberg to Kempten | 371.85 mi (598.43 km) |
| Hardenberg to Kenzingen | 306.50 mi (493.27 km) |
| Hardenberg to Kerpen | 117.15 mi (188.53 km) |
| Hardenberg to Ketsch | 236.35 mi (380.36 km) |
| Hardenberg to Kevelaer | 69.71 mi (112.18 km) |
| Hardenberg to Kiel | 189.02 mi (304.21 km) |
| Hardenberg to Kierspe | 107.01 mi (172.22 km) |
| Hardenberg to Kirchhain | 155.95 mi (250.97 km) |
| Hardenberg to Kirchheim bei Munchen | 378.33 mi (608.87 km) |
| Hardenberg to Kirchheim unter Teck | 297.84 mi (479.33 km) |
| Hardenberg to Kirchhundem | 119.12 mi (191.70 km) |
