| Boulder City to Kidricevo | 5,983.17 mi (9,628.99 km) |
| Boulder City to Kobarid | 5,925.47 mi (9,536.13 km) |
| Boulder City to Kobilje | 5,985.39 mi (9,632.56 km) |
| Boulder City to Kocevje | 5,996.64 mi (9,650.65 km) |
| Boulder City to Komen | 5,953.71 mi (9,581.57 km) |
| Boulder City to Komenda | 5,956.58 mi (9,586.20 km) |
| Boulder City to Koper | 5,967.38 mi (9,603.57 km) |
| Boulder City to Kostanjevica na Krki | 6,002.57 mi (9,660.20 km) |
| Boulder City to Kostel | 6,005.41 mi (9,664.77 km) |
| Boulder City to Kozje | 5,994.18 mi (9,646.71 km) |
| Boulder City to Kranj | 5,950.01 mi (9,575.62 km) |
| Boulder City to Kranjska Gora | 5,919.05 mi (9,525.80 km) |
| Boulder City to Krizevci | 5,984.58 mi (9,631.25 km) |
| Boulder City to Krsko | 5,998.68 mi (9,653.94 km) |
| Boulder City to Kuzma | 5,968.18 mi (9,604.86 km) |
