| North Potomac to Jozefow | 4,469.01 mi (7,192.18 km) |
| North Potomac to Kalisz | 4,367.20 mi (7,028.32 km) |
| North Potomac to Kamien Pomorski | 4,173.09 mi (6,715.94 km) |
| North Potomac to Kamienna Gora | 4,323.54 mi (6,958.07 km) |
| North Potomac to Karczew | 4,471.44 mi (7,196.09 km) |
| North Potomac to Kartuzy | 4,283.90 mi (6,894.26 km) |
| North Potomac to Katowice | 4,454.73 mi (7,169.20 km) |
| North Potomac to Kedzierzyn-Kozle | 4,420.87 mi (7,114.71 km) |
| North Potomac to Kepno | 4,380.04 mi (7,048.99 km) |
| North Potomac to Ketrzyn | 4,403.87 mi (7,087.34 km) |
| North Potomac to Kety | 4,475.50 mi (7,202.62 km) |
| North Potomac to Kielce | 4,493.13 mi (7,231.00 km) |
| North Potomac to Kielczow | 4,354.78 mi (7,008.34 km) |
| North Potomac to Klobuck | 4,428.41 mi (7,126.84 km) |
| North Potomac to Klodzko | 4,358.98 mi (7,015.10 km) |
