| Harlow to Jozefow | 895.82 mi (1,441.68 km) |
| Harlow to Kalisz | 765.65 mi (1,232.19 km) |
| Harlow to Kamien Pomorski | 627.94 mi (1,010.57 km) |
| Harlow to Kamienna Gora | 689.44 mi (1,109.54 km) |
| Harlow to Karczew | 896.94 mi (1,443.49 km) |
| Harlow to Kartuzy | 768.63 mi (1,236.99 km) |
| Harlow to Katowice | 825.17 mi (1,327.98 km) |
| Harlow to Kedzierzyn-Kozle | 788.83 mi (1,269.49 km) |
| Harlow to Kepno | 766.30 mi (1,233.24 km) |
| Harlow to Ketrzyn | 895.88 mi (1,441.77 km) |
| Harlow to Kety | 840.44 mi (1,352.55 km) |
| Harlow to Kielce | 884.59 mi (1,423.60 km) |
| Harlow to Kielczow | 733.65 mi (1,180.70 km) |
| Harlow to Klobuck | 811.46 mi (1,305.92 km) |
| Harlow to Klodzko | 721.18 mi (1,160.63 km) |
