| Piraeus to Koscielisko | 805.57 mi (1,296.44 km) |
| Piraeus to Koscierzyna | 1,149.13 mi (1,849.34 km) |
| Piraeus to Kostrzyn | 1,045.35 mi (1,682.33 km) |
| Piraeus to Kostrzyn nad Odra | 1,100.09 mi (1,770.43 km) |
| Piraeus to Koszalin | 1,177.26 mi (1,894.61 km) |
| Piraeus to Kowary | 966.71 mi (1,555.77 km) |
| Piraeus to Kozienice | 947.86 mi (1,525.43 km) |
| Piraeus to Kozuchow | 1,030.69 mi (1,658.74 km) |
| Piraeus to Kozy | 853.31 mi (1,373.27 km) |
| Piraeus to Krakow | 857.07 mi (1,379.33 km) |
| Piraeus to Krapkowice | 909.21 mi (1,463.23 km) |
| Piraeus to Krasnik | 899.12 mi (1,447.00 km) |
| Piraeus to Krasnystaw | 901.28 mi (1,450.47 km) |
| Piraeus to Krosno | 816.60 mi (1,314.19 km) |
| Piraeus to Krosno Odrzanskie | 1,057.61 mi (1,702.06 km) |
