| Hardenberg to Kothen | 231.57 mi (372.68 km) |
| Hardenberg to Kranenburg | 59.57 mi (95.87 km) |
| Hardenberg to Krefeld | 85.25 mi (137.19 km) |
| Hardenberg to Kressbronn am Bodensee | 367.96 mi (592.18 km) |
| Hardenberg to Kreuzau | 125.84 mi (202.53 km) |
| Hardenberg to Kreuztal | 124.71 mi (200.70 km) |
| Hardenberg to Kriftel | 189.28 mi (304.62 km) |
| Hardenberg to Kronach | 258.86 mi (416.60 km) |
| Hardenberg to Kronberg | 183.60 mi (295.48 km) |
| Hardenberg to Kronshagen | 187.70 mi (302.07 km) |
| Hardenberg to Krumbach | 340.80 mi (548.47 km) |
| Hardenberg to Kulmbach | 268.75 mi (432.51 km) |
| Hardenberg to Kummersbruck | 315.81 mi (508.24 km) |
| Hardenberg to Kunzell | 192.71 mi (310.13 km) |
| Hardenberg to Kunzelsau | 263.20 mi (423.58 km) |
