| Holyhead to Koscian | 891.86 mi (1,435.31 km) |
| Holyhead to Koscielisko | 1,089.12 mi (1,752.78 km) |
| Holyhead to Koscierzyna | 922.54 mi (1,484.68 km) |
| Holyhead to Kostrzyn | 910.50 mi (1,465.31 km) |
| Holyhead to Kostrzyn nad Odra | 802.55 mi (1,291.58 km) |
| Holyhead to Koszalin | 849.49 mi (1,367.13 km) |
| Holyhead to Kowary | 883.60 mi (1,422.02 km) |
| Holyhead to Kozienice | 1,103.47 mi (1,775.87 km) |
| Holyhead to Kozuchow | 854.32 mi (1,374.90 km) |
| Holyhead to Kozy | 1,043.04 mi (1,678.61 km) |
| Holyhead to Krakow | 1,070.47 mi (1,722.76 km) |
| Holyhead to Krapkowice | 979.18 mi (1,575.84 km) |
| Holyhead to Krasnik | 1,144.23 mi (1,841.45 km) |
| Holyhead to Krasnystaw | 1,182.60 mi (1,903.21 km) |
| Holyhead to Krosno | 1,155.09 mi (1,858.94 km) |
