| Boulder City to Kelkheim (Taunus) | 5,567.75 mi (8,960.44 km) |
| Boulder City to Kelsterbach | 5,574.06 mi (8,970.58 km) |
| Boulder City to Kemberg | 5,604.96 mi (9,020.31 km) |
| Boulder City to Kempen | 5,445.07 mi (8,762.99 km) |
| Boulder City to Kempten | 5,747.42 mi (9,249.57 km) |
| Boulder City to Kenzingen | 5,644.18 mi (9,083.44 km) |
| Boulder City to Kerpen | 5,477.75 mi (8,815.58 km) |
| Boulder City to Ketsch | 5,609.17 mi (9,027.08 km) |
| Boulder City to Kevelaer | 5,429.28 mi (8,737.59 km) |
| Boulder City to Kiel | 5,405.00 mi (8,698.50 km) |
| Boulder City to Kierspe | 5,491.29 mi (8,837.38 km) |
| Boulder City to Kirchhain | 5,547.62 mi (8,928.04 km) |
| Boulder City to Kirchheim bei Munchen | 5,768.41 mi (9,283.35 km) |
| Boulder City to Kirchheim unter Teck | 5,673.79 mi (9,131.09 km) |
| Boulder City to Kirchhundem | 5,508.48 mi (8,865.05 km) |
