| Groningen to Kalisz | 494.21 mi (795.35 km) |
| Groningen to Kamien Pomorski | 340.30 mi (547.66 km) |
| Groningen to Kamienna Gora | 435.95 mi (701.60 km) |
| Groningen to Karczew | 619.33 mi (996.72 km) |
| Groningen to Kartuzy | 480.65 mi (773.54 km) |
| Groningen to Katowice | 569.39 mi (916.35 km) |
| Groningen to Kedzierzyn-Kozle | 534.47 mi (860.15 km) |
| Groningen to Kepno | 500.44 mi (805.39 km) |
| Groningen to Ketrzyn | 608.60 mi (979.44 km) |
| Groningen to Kety | 588.72 mi (947.45 km) |
| Groningen to Kielce | 618.14 mi (994.80 km) |
| Groningen to Kielczow | 471.40 mi (758.64 km) |
| Groningen to Klobuck | 547.97 mi (881.88 km) |
| Groningen to Klodzko | 471.05 mi (758.09 km) |
| Groningen to Kluczbork | 517.30 mi (832.51 km) |
