| Fort Collins to Jozefow | 5,270.84 mi (8,482.60 km) |
| Fort Collins to Kalisz | 5,204.19 mi (8,375.34 km) |
| Fort Collins to Kamien Pomorski | 4,998.32 mi (8,044.02 km) |
| Fort Collins to Kamienna Gora | 5,195.56 mi (8,361.45 km) |
| Fort Collins to Karczew | 5,273.97 mi (8,487.64 km) |
| Fort Collins to Kartuzy | 5,073.81 mi (8,165.51 km) |
| Fort Collins to Katowice | 5,308.84 mi (8,543.75 km) |
| Fort Collins to Kedzierzyn-Kozle | 5,281.04 mi (8,499.01 km) |
| Fort Collins to Kepno | 5,226.14 mi (8,410.66 km) |
| Fort Collins to Ketrzyn | 5,170.34 mi (8,320.85 km) |
| Fort Collins to Kety | 5,333.92 mi (8,584.11 km) |
| Fort Collins to Kielce | 5,321.97 mi (8,564.88 km) |
| Fort Collins to Kielczow | 5,210.52 mi (8,385.52 km) |
| Fort Collins to Klobuck | 5,272.24 mi (8,484.85 km) |
| Fort Collins to Klodzko | 5,231.63 mi (8,419.50 km) |
