| Rio Grande City to Koscian | 5,766.99 mi (9,281.08 km) |
| Rio Grande City to Koscielisko | 5,996.19 mi (9,649.93 km) |
| Rio Grande City to Koscierzyna | 5,729.39 mi (9,220.56 km) |
| Rio Grande City to Kostrzyn | 5,774.11 mi (9,292.54 km) |
| Rio Grande City to Kostrzyn nad Odra | 5,678.31 mi (9,138.35 km) |
| Rio Grande City to Koszalin | 5,666.84 mi (9,119.90 km) |
| Rio Grande City to Kowary | 5,789.79 mi (9,317.76 km) |
| Rio Grande City to Kozienice | 5,954.75 mi (9,583.25 km) |
| Rio Grande City to Kozuchow | 5,743.64 mi (9,243.50 km) |
| Rio Grande City to Kozy | 5,945.52 mi (9,568.39 km) |
| Rio Grande City to Krakow | 5,964.91 mi (9,599.60 km) |
| Rio Grande City to Krapkowice | 5,878.75 mi (9,460.93 km) |
| Rio Grande City to Krasnik | 6,005.74 mi (9,665.30 km) |
| Rio Grande City to Krasnystaw | 6,034.94 mi (9,712.31 km) |
| Rio Grande City to Krosno | 6,044.20 mi (9,727.21 km) |
