| Troisdorf to Klaukkala | 947.58 mi (1,524.98 km) |
| Troisdorf to Kokkola | 1,072.48 mi (1,725.98 km) |
| Troisdorf to Kontiolahti | 1,179.50 mi (1,898.22 km) |
| Troisdorf to Korsholm | 1,005.29 mi (1,617.85 km) |
| Troisdorf to Kotka | 1,012.64 mi (1,629.68 km) |
| Troisdorf to Kouvola | 1,021.08 mi (1,643.27 km) |
| Troisdorf to Kuhmo | 1,226.23 mi (1,973.42 km) |
| Troisdorf to Kuopio | 1,129.14 mi (1,817.18 km) |
| Troisdorf to Kurikka | 994.04 mi (1,599.75 km) |
| Troisdorf to Kuusamo | 1,301.29 mi (2,094.23 km) |
| Troisdorf to Kuusankoski | 1,020.40 mi (1,642.17 km) |
| Troisdorf to Lahti | 996.76 mi (1,604.13 km) |
| Troisdorf to Laitila | 891.48 mi (1,434.70 km) |
| Troisdorf to Lapinlahti | 1,142.59 mi (1,838.82 km) |
| Troisdorf to Lappeenranta | 1,070.16 mi (1,722.25 km) |
