| Webster Groves to Kluczbork | 4,896.00 mi (7,879.35 km) |
| Webster Groves to Knurow | 4,945.03 mi (7,958.26 km) |
| Webster Groves to Kobylka | 4,936.33 mi (7,944.26 km) |
| Webster Groves to Kokoszki | 4,761.84 mi (7,663.43 km) |
| Webster Groves to Kolbuszowa | 5,048.22 mi (8,124.33 km) |
| Webster Groves to Kolno | 4,911.89 mi (7,904.93 km) |
| Webster Groves to Kolo | 4,857.92 mi (7,818.07 km) |
| Webster Groves to Kolobrzeg | 4,674.72 mi (7,523.23 km) |
| Webster Groves to Koluszki | 4,916.11 mi (7,911.71 km) |
| Webster Groves to Komorniki | 4,790.32 mi (7,709.27 km) |
| Webster Groves to Konin | 4,845.00 mi (7,797.27 km) |
| Webster Groves to Konskie | 4,960.74 mi (7,983.55 km) |
| Webster Groves to Konstancin-Jeziorna | 4,944.72 mi (7,957.75 km) |
| Webster Groves to Konstantynow Lodzki | 4,900.60 mi (7,886.75 km) |
| Webster Groves to Koronowo | 4,787.44 mi (7,704.64 km) |
