| North Potomac to Krosno Odrzanskie | 4,246.87 mi (6,834.67 km) |
| North Potomac to Krotoszyn | 4,345.74 mi (6,993.79 km) |
| North Potomac to Kruszwica | 4,344.65 mi (6,992.04 km) |
| North Potomac to Krynica | 4,559.28 mi (7,337.45 km) |
| North Potomac to Krzeszowice | 4,482.80 mi (7,214.38 km) |
| North Potomac to Kudowa-Zdroj | 4,343.10 mi (6,989.54 km) |
| North Potomac to Kutno | 4,397.83 mi (7,077.63 km) |
| North Potomac to Kwidzyn | 4,329.97 mi (6,968.42 km) |
| North Potomac to Lancut | 4,582.47 mi (7,374.78 km) |
| North Potomac to Lapy | 4,496.32 mi (7,236.12 km) |
| North Potomac to Lask | 4,411.97 mi (7,100.38 km) |
| North Potomac to Laziska Gorne | 4,452.61 mi (7,165.78 km) |
| North Potomac to Lebork | 4,260.84 mi (6,857.16 km) |
| North Potomac to Leczna | 4,559.52 mi (7,337.85 km) |
| North Potomac to Leczyca | 4,398.20 mi (7,078.22 km) |
