| Rio Grande City to Kluczbork | 5,866.19 mi (9,440.72 km) |
| Rio Grande City to Knurow | 5,914.39 mi (9,518.29 km) |
| Rio Grande City to Kobylka | 5,909.96 mi (9,511.17 km) |
| Rio Grande City to Kokoszki | 5,736.13 mi (9,231.40 km) |
| Rio Grande City to Kolbuszowa | 6,019.90 mi (9,688.09 km) |
| Rio Grande City to Kolno | 5,886.68 mi (9,473.70 km) |
| Rio Grande City to Kolo | 5,830.05 mi (9,382.56 km) |
| Rio Grande City to Kolobrzeg | 5,647.60 mi (9,088.93 km) |
| Rio Grande City to Koluszki | 5,888.38 mi (9,476.43 km) |
| Rio Grande City to Komorniki | 5,761.35 mi (9,272.00 km) |
| Rio Grande City to Konin | 5,816.94 mi (9,361.45 km) |
| Rio Grande City to Konskie | 5,932.72 mi (9,547.79 km) |
| Rio Grande City to Konstancin-Jeziorna | 5,918.07 mi (9,524.21 km) |
| Rio Grande City to Konstantynow Lodzki | 5,872.59 mi (9,451.01 km) |
| Rio Grande City to Koronowo | 5,760.49 mi (9,270.62 km) |
