| Langenthal to Karis | 1,094.72 mi (1,761.79 km) |
| Langenthal to Karkkila | 1,131.04 mi (1,820.23 km) |
| Langenthal to Kauhajoki | 1,191.11 mi (1,916.90 km) |
| Langenthal to Kauhava | 1,245.01 mi (2,003.64 km) |
| Langenthal to Kauniainen | 1,127.51 mi (1,814.55 km) |
| Langenthal to Kemi | 1,420.27 mi (2,285.70 km) |
| Langenthal to Kemijarvi | 1,521.93 mi (2,449.31 km) |
| Langenthal to Kempele | 1,389.72 mi (2,236.54 km) |
| Langenthal to Kerava | 1,145.34 mi (1,843.25 km) |
| Langenthal to Keuruu | 1,230.98 mi (1,981.06 km) |
| Langenthal to Kiiminki | 1,406.58 mi (2,263.68 km) |
| Langenthal to Kirkkonummi | 1,114.95 mi (1,794.34 km) |
| Langenthal to Kitee | 1,348.11 mi (2,169.57 km) |
| Langenthal to Kiuruvesi | 1,342.95 mi (2,161.28 km) |
| Langenthal to Kivisto | 1,135.46 mi (1,827.34 km) |
