| Boulder City to Kothen | 5,586.67 mi (8,990.87 km) |
| Boulder City to Kranenburg | 5,411.85 mi (8,709.53 km) |
| Boulder City to Krefeld | 5,451.14 mi (8,772.77 km) |
| Boulder City to Kressbronn am Bodensee | 5,732.13 mi (9,224.97 km) |
| Boulder City to Kreuzau | 5,477.58 mi (8,815.31 km) |
| Boulder City to Kreuztal | 5,511.64 mi (8,870.12 km) |
| Boulder City to Kriftel | 5,571.04 mi (8,965.72 km) |
| Boulder City to Kronach | 5,648.23 mi (9,089.96 km) |
| Boulder City to Kronberg | 5,566.99 mi (8,959.21 km) |
| Boulder City to Kronshagen | 5,402.95 mi (8,695.22 km) |
| Boulder City to Krumbach | 5,722.35 mi (9,209.24 km) |
| Boulder City to Kulmbach | 5,658.63 mi (9,106.69 km) |
| Boulder City to Kummersbruck | 5,707.42 mi (9,185.21 km) |
| Boulder City to Kunzell | 5,584.94 mi (8,988.09 km) |
| Boulder City to Kunzelsau | 5,648.52 mi (9,090.42 km) |
