| Hardenberg to Klaukkala | 872.81 mi (1,404.65 km) |
| Hardenberg to Kokkola | 977.68 mi (1,573.43 km) |
| Hardenberg to Kontiolahti | 1,100.06 mi (1,770.38 km) |
| Hardenberg to Korsholm | 910.52 mi (1,465.33 km) |
| Hardenberg to Kotka | 941.46 mi (1,515.14 km) |
| Hardenberg to Kouvola | 947.03 mi (1,524.10 km) |
| Hardenberg to Kuhmo | 1,140.11 mi (1,834.83 km) |
| Hardenberg to Kuopio | 1,045.91 mi (1,683.22 km) |
| Hardenberg to Kurikka | 902.68 mi (1,452.73 km) |
| Hardenberg to Kuusamo | 1,207.75 mi (1,943.69 km) |
| Hardenberg to Kuusankoski | 945.97 mi (1,522.39 km) |
| Hardenberg to Lahti | 920.11 mi (1,480.78 km) |
| Hardenberg to Laitila | 807.00 mi (1,298.73 km) |
| Hardenberg to Lapinlahti | 1,056.72 mi (1,700.62 km) |
| Hardenberg to Lappeenranta | 997.40 mi (1,605.16 km) |
