| Fort Collins to Kamen | 4,899.65 mi (7,885.23 km) |
| Fort Collins to Kamenz | 5,113.86 mi (8,229.96 km) |
| Fort Collins to Kamp-Lintfort | 4,867.60 mi (7,833.65 km) |
| Fort Collins to Kandel | 5,034.33 mi (8,101.98 km) |
| Fort Collins to Kappeln | 4,825.74 mi (7,766.28 km) |
| Fort Collins to Karben | 4,998.63 mi (8,044.51 km) |
| Fort Collins to Karlsdorf-Neuthard | 5,043.17 mi (8,116.19 km) |
| Fort Collins to Karlsfeld | 5,182.99 mi (8,341.22 km) |
| Fort Collins to Karlsruhe | 5,044.58 mi (8,118.46 km) |
| Fort Collins to Kassel | 4,970.53 mi (7,999.29 km) |
| Fort Collins to Kaufbeuren | 5,171.90 mi (8,323.37 km) |
| Fort Collins to Kaufering | 5,170.54 mi (8,321.18 km) |
| Fort Collins to Kaufungen | 4,975.96 mi (8,008.04 km) |
| Fort Collins to Kehl | 5,045.93 mi (8,120.64 km) |
| Fort Collins to Kelheim | 5,161.46 mi (8,306.56 km) |
