| North Potomac to Koscian | 4,303.08 mi (6,925.14 km) |
| North Potomac to Koscielisko | 4,523.34 mi (7,279.61 km) |
| North Potomac to Koscierzyna | 4,283.48 mi (6,893.59 km) |
| North Potomac to Kostrzyn | 4,313.79 mi (6,942.37 km) |
| North Potomac to Kostrzyn nad Odra | 4,212.81 mi (6,779.86 km) |
| North Potomac to Koszalin | 4,216.63 mi (6,786.01 km) |
| North Potomac to Kowary | 4,315.63 mi (6,945.33 km) |
| North Potomac to Kozienice | 4,501.25 mi (7,244.07 km) |
| North Potomac to Kozuchow | 4,274.91 mi (6,879.81 km) |
| North Potomac to Kozy | 4,474.17 mi (7,200.48 km) |
| North Potomac to Krakow | 4,496.87 mi (7,237.01 km) |
| North Potomac to Krapkowice | 4,407.93 mi (7,093.87 km) |
| North Potomac to Krasnik | 4,549.76 mi (7,322.14 km) |
| North Potomac to Krasnystaw | 4,582.43 mi (7,374.70 km) |
| North Potomac to Krosno | 4,578.98 mi (7,369.16 km) |
