| North Potomac to Kluczbork | 4,399.24 mi (7,079.89 km) |
| North Potomac to Knurow | 4,443.91 mi (7,151.79 km) |
| North Potomac to Kobylka | 4,460.53 mi (7,178.53 km) |
| North Potomac to Kokoszki | 4,293.46 mi (6,909.66 km) |
| North Potomac to Kolbuszowa | 4,558.25 mi (7,335.80 km) |
| North Potomac to Kolno | 4,447.33 mi (7,157.29 km) |
| North Potomac to Kolo | 4,372.23 mi (7,036.42 km) |
| North Potomac to Kolobrzeg | 4,195.61 mi (6,752.19 km) |
| North Potomac to Koluszki | 4,430.80 mi (7,130.68 km) |
| North Potomac to Komorniki | 4,298.80 mi (6,918.24 km) |
| North Potomac to Konin | 4,358.22 mi (7,013.87 km) |
| North Potomac to Konskie | 4,473.26 mi (7,199.01 km) |
| North Potomac to Konstancin-Jeziorna | 4,466.63 mi (7,188.35 km) |
| North Potomac to Konstantynow Lodzki | 4,413.68 mi (7,103.13 km) |
| North Potomac to Koronowo | 4,308.55 mi (6,933.95 km) |
