| Boulder City to Jicin | 5,751.76 mi (9,256.57 km) |
| Boulder City to Jihlava | 5,814.48 mi (9,357.51 km) |
| Boulder City to Jindrichuv Hradec | 5,811.86 mi (9,353.28 km) |
| Boulder City to Jirkov | 5,695.46 mi (9,165.96 km) |
| Boulder City to Kadan | 5,697.04 mi (9,168.50 km) |
| Boulder City to Karlovy Vary | 5,693.38 mi (9,162.61 km) |
| Boulder City to Karvina | 5,869.48 mi (9,446.02 km) |
| Boulder City to Kladno | 5,732.43 mi (9,225.46 km) |
| Boulder City to Klasterec nad Ohri | 5,693.76 mi (9,163.21 km) |
| Boulder City to Klatovy | 5,749.66 mi (9,253.18 km) |
| Boulder City to Kolin | 5,769.68 mi (9,285.40 km) |
| Boulder City to Koprivnice | 5,873.13 mi (9,451.88 km) |
| Boulder City to Kralupy nad Vltavou | 5,733.49 mi (9,227.16 km) |
| Boulder City to Kraluv Dvur | 5,741.27 mi (9,239.68 km) |
| Boulder City to Krnov | 5,834.03 mi (9,388.97 km) |
