| Mercer Island to Kluczbork | 5,234.80 mi (8,424.59 km) |
| Mercer Island to Knurow | 5,291.36 mi (8,515.63 km) |
| Mercer Island to Kobylka | 5,205.49 mi (8,377.43 km) |
| Mercer Island to Kokoszki | 5,031.36 mi (8,097.19 km) |
| Mercer Island to Kolbuszowa | 5,346.78 mi (8,604.81 km) |
| Mercer Island to Kolno | 5,150.32 mi (8,288.64 km) |
| Mercer Island to Kolo | 5,167.31 mi (8,315.98 km) |
| Mercer Island to Kolobrzeg | 4,987.96 mi (8,027.35 km) |
| Mercer Island to Koluszki | 5,216.91 mi (8,395.80 km) |
| Mercer Island to Komorniki | 5,126.30 mi (8,249.98 km) |
| Mercer Island to Konin | 5,159.40 mi (8,303.25 km) |
| Mercer Island to Konskie | 5,262.59 mi (8,469.32 km) |
| Mercer Island to Konstancin-Jeziorna | 5,219.74 mi (8,400.35 km) |
| Mercer Island to Konstantynow Lodzki | 5,208.30 mi (8,381.95 km) |
| Mercer Island to Koronowo | 5,085.20 mi (8,183.84 km) |
