| Mercer Island to Koscian | 5,136.57 mi (8,266.51 km) |
| Mercer Island to Koscielisko | 5,372.64 mi (8,646.42 km) |
| Mercer Island to Koscierzyna | 5,036.79 mi (8,105.93 km) |
| Mercer Island to Kostrzyn | 5,128.57 mi (8,253.64 km) |
| Mercer Island to Kostrzyn nad Odra | 5,066.35 mi (8,153.50 km) |
| Mercer Island to Koszalin | 4,998.12 mi (8,043.70 km) |
| Mercer Island to Kowary | 5,199.34 mi (8,367.52 km) |
| Mercer Island to Kozienice | 5,259.13 mi (8,463.76 km) |
| Mercer Island to Kozuchow | 5,136.11 mi (8,265.77 km) |
| Mercer Island to Kozy | 5,322.14 mi (8,565.16 km) |
| Mercer Island to Krakow | 5,324.98 mi (8,569.72 km) |
| Mercer Island to Krapkowice | 5,261.92 mi (8,468.25 km) |
| Mercer Island to Krasnik | 5,312.64 mi (8,549.87 km) |
| Mercer Island to Krasnystaw | 5,325.16 mi (8,570.02 km) |
| Mercer Island to Krosno | 5,382.26 mi (8,661.91 km) |
