| Webster Groves to Koscian | 4,796.25 mi (7,718.83 km) |
| Webster Groves to Koscielisko | 5,027.35 mi (8,090.73 km) |
| Webster Groves to Koscierzyna | 4,755.50 mi (7,653.24 km) |
| Webster Groves to Kostrzyn | 4,802.58 mi (7,729.00 km) |
| Webster Groves to Kostrzyn nad Odra | 4,708.12 mi (7,576.98 km) |
| Webster Groves to Koszalin | 4,693.65 mi (7,553.70 km) |
| Webster Groves to Kowary | 4,821.78 mi (7,759.91 km) |
| Webster Groves to Kozienice | 4,981.68 mi (8,017.23 km) |
| Webster Groves to Kozuchow | 4,774.16 mi (7,683.27 km) |
| Webster Groves to Kozy | 4,976.35 mi (8,008.66 km) |
| Webster Groves to Krakow | 4,994.82 mi (8,038.38 km) |
| Webster Groves to Krapkowice | 4,909.56 mi (7,901.17 km) |
| Webster Groves to Krasnik | 5,033.01 mi (8,099.84 km) |
| Webster Groves to Krasnystaw | 5,061.61 mi (8,145.87 km) |
| Webster Groves to Krosno | 5,073.28 mi (8,164.65 km) |
