| Kalkar to Knurow | 548.49 mi (882.70 km) |
| Kalkar to Kobylka | 633.83 mi (1,020.05 km) |
| Kalkar to Kokoszki | 537.12 mi (864.41 km) |
| Kalkar to Kolbuszowa | 679.42 mi (1,093.42 km) |
| Kalkar to Kolno | 665.45 mi (1,070.94 km) |
| Kalkar to Kolo | 525.64 mi (845.93 km) |
| Kalkar to Kolobrzeg | 421.09 mi (677.68 km) |
| Kalkar to Koluszki | 577.03 mi (928.64 km) |
| Kalkar to Komorniki | 443.80 mi (714.23 km) |
| Kalkar to Konin | 510.10 mi (820.92 km) |
| Kalkar to Konskie | 608.10 mi (978.64 km) |
| Kalkar to Konstancin-Jeziorna | 631.19 mi (1,015.81 km) |
| Kalkar to Konstantynow Lodzki | 557.15 mi (896.64 km) |
| Kalkar to Koronowo | 500.70 mi (805.81 km) |
| Kalkar to Koscian | 441.73 mi (710.89 km) |
