| Potomac to Jozefow | 4,471.63 mi (7,196.39 km) |
| Potomac to Kalisz | 4,369.67 mi (7,032.31 km) |
| Potomac to Kamien Pomorski | 4,175.67 mi (6,720.10 km) |
| Potomac to Kamienna Gora | 4,325.86 mi (6,961.79 km) |
| Potomac to Karczew | 4,474.05 mi (7,200.29 km) |
| Potomac to Kartuzy | 4,286.62 mi (6,898.65 km) |
| Potomac to Katowice | 4,457.10 mi (7,173.01 km) |
| Potomac to Kedzierzyn-Kozle | 4,423.22 mi (7,118.49 km) |
| Potomac to Kepno | 4,382.47 mi (7,052.90 km) |
| Potomac to Ketrzyn | 4,406.67 mi (7,091.85 km) |
| Potomac to Kety | 4,477.84 mi (7,206.39 km) |
| Potomac to Kielce | 4,495.62 mi (7,235.00 km) |
| Potomac to Kielczow | 4,357.16 mi (7,012.18 km) |
| Potomac to Klobuck | 4,430.84 mi (7,130.74 km) |
| Potomac to Klodzko | 4,361.28 mi (7,018.81 km) |
