| Hennef to Klaukkala | 945.83 mi (1,522.17 km) |
| Hennef to Kokkola | 1,071.98 mi (1,725.18 km) |
| Hennef to Kontiolahti | 1,177.97 mi (1,895.75 km) |
| Hennef to Korsholm | 1,004.81 mi (1,617.08 km) |
| Hennef to Kotka | 1,010.67 mi (1,626.52 km) |
| Hennef to Kouvola | 1,019.27 mi (1,640.36 km) |
| Hennef to Kuhmo | 1,225.10 mi (1,971.61 km) |
| Hennef to Kuopio | 1,127.85 mi (1,815.10 km) |
| Hennef to Kurikka | 993.32 mi (1,598.59 km) |
| Hennef to Kuusamo | 1,300.66 mi (2,093.21 km) |
| Hennef to Kuusankoski | 1,018.61 mi (1,639.30 km) |
| Hennef to Lahti | 995.11 mi (1,601.47 km) |
| Hennef to Laitila | 890.34 mi (1,432.86 km) |
| Hennef to Lapinlahti | 1,141.46 mi (1,837.01 km) |
| Hennef to Lappeenranta | 1,068.26 mi (1,719.20 km) |
