| Fort Collins to Kelkheim (Taunus) | 4,992.79 mi (8,035.12 km) |
| Fort Collins to Kelsterbach | 4,999.01 mi (8,045.14 km) |
| Fort Collins to Kemberg | 5,044.32 mi (8,118.05 km) |
| Fort Collins to Kempen | 4,870.06 mi (7,837.60 km) |
| Fort Collins to Kempten | 5,168.95 mi (8,318.63 km) |
| Fort Collins to Kenzingen | 5,061.97 mi (8,146.45 km) |
| Fort Collins to Kerpen | 4,901.67 mi (7,888.48 km) |
| Fort Collins to Ketsch | 5,031.97 mi (8,098.17 km) |
| Fort Collins to Kevelaer | 4,854.66 mi (7,812.82 km) |
| Fort Collins to Kiel | 4,847.77 mi (7,801.74 km) |
| Fort Collins to Kierspe | 4,917.76 mi (7,914.36 km) |
| Fort Collins to Kirchhain | 4,975.77 mi (8,007.73 km) |
| Fort Collins to Kirchheim bei Munchen | 5,194.31 mi (8,359.44 km) |
| Fort Collins to Kirchheim unter Teck | 5,096.27 mi (8,201.65 km) |
| Fort Collins to Kirchhundem | 4,935.86 mi (7,943.51 km) |
