| Webster Groves to Jozefow | 4,946.29 mi (7,960.28 km) |
| Webster Groves to Kalisz | 4,858.29 mi (7,818.67 km) |
| Webster Groves to Kamien Pomorski | 4,656.42 mi (7,493.78 km) |
| Webster Groves to Kamienna Gora | 4,829.11 mi (7,771.71 km) |
| Webster Groves to Karczew | 4,949.05 mi (7,964.73 km) |
| Webster Groves to Kartuzy | 4,753.39 mi (7,649.84 km) |
| Webster Groves to Katowice | 4,954.32 mi (7,973.21 km) |
| Webster Groves to Kedzierzyn-Kozle | 4,922.62 mi (7,922.19 km) |
| Webster Groves to Kepno | 4,875.23 mi (7,845.92 km) |
| Webster Groves to Ketrzyn | 4,864.84 mi (7,829.20 km) |
| Webster Groves to Kety | 4,977.19 mi (8,010.02 km) |
| Webster Groves to Kielce | 4,982.39 mi (8,018.38 km) |
| Webster Groves to Kielczow | 4,853.77 mi (7,811.39 km) |
| Webster Groves to Klobuck | 4,923.25 mi (7,923.21 km) |
| Webster Groves to Klodzko | 4,865.27 mi (7,829.90 km) |
