| Rio Maior to Kluczbork | 1,535.17 mi (2,470.62 km) |
| Rio Maior to Knurow | 1,536.44 mi (2,472.66 km) |
| Rio Maior to Kobylka | 1,687.66 mi (2,716.03 km) |
| Rio Maior to Kokoszki | 1,642.32 mi (2,643.06 km) |
| Rio Maior to Kolbuszowa | 1,667.53 mi (2,683.63 km) |
| Rio Maior to Kolno | 1,742.66 mi (2,804.54 km) |
| Rio Maior to Kolo | 1,583.39 mi (2,548.23 km) |
| Rio Maior to Kolobrzeg | 1,534.19 mi (2,469.04 km) |
| Rio Maior to Koluszki | 1,617.85 mi (2,603.68 km) |
| Rio Maior to Komorniki | 1,510.94 mi (2,431.62 km) |
| Rio Maior to Konin | 1,569.61 mi (2,526.05 km) |
| Rio Maior to Konskie | 1,630.05 mi (2,623.31 km) |
| Rio Maior to Konstancin-Jeziorna | 1,678.47 mi (2,701.23 km) |
| Rio Maior to Konstantynow Lodzki | 1,599.21 mi (2,573.68 km) |
| Rio Maior to Koronowo | 1,589.29 mi (2,557.71 km) |
