| Boulder City to Krosno Odrzanskie | 5,658.83 mi (9,107.01 km) |
| Boulder City to Krotoszyn | 5,739.16 mi (9,236.28 km) |
| Boulder City to Kruszwica | 5,706.94 mi (9,184.43 km) |
| Boulder City to Krynica | 5,956.83 mi (9,586.60 km) |
| Boulder City to Krzeszowice | 5,882.19 mi (9,466.47 km) |
| Boulder City to Kudowa-Zdroj | 5,775.84 mi (9,295.31 km) |
| Boulder City to Kutno | 5,757.47 mi (9,265.76 km) |
| Boulder City to Kwidzyn | 5,662.80 mi (9,113.39 km) |
| Boulder City to Lancut | 5,951.22 mi (9,577.57 km) |
| Boulder City to Lapy | 5,798.28 mi (9,331.43 km) |
| Boulder City to Lask | 5,787.68 mi (9,314.37 km) |
| Boulder City to Laziska Gorne | 5,861.01 mi (9,432.38 km) |
| Boulder City to Lebork | 5,589.14 mi (8,994.85 km) |
| Boulder City to Leczna | 5,895.65 mi (9,488.14 km) |
| Boulder City to Leczyca | 5,763.61 mi (9,275.63 km) |
