| Portici to Kalisz | 776.26 mi (1,249.26 km) |
| Portici to Kamien Pomorski | 908.82 mi (1,462.60 km) |
| Portici to Kamienna Gora | 693.18 mi (1,115.56 km) |
| Portici to Karczew | 843.95 mi (1,358.20 km) |
| Portici to Kartuzy | 950.50 mi (1,529.68 km) |
| Portici to Katowice | 690.47 mi (1,111.20 km) |
| Portici to Kedzierzyn-Kozle | 684.16 mi (1,101.05 km) |
| Portici to Kepno | 743.52 mi (1,196.57 km) |
| Portici to Ketrzyn | 972.53 mi (1,565.13 km) |
| Portici to Kety | 670.19 mi (1,078.56 km) |
| Portici to Kielce | 757.15 mi (1,218.52 km) |
| Portici to Kielczow | 725.85 mi (1,168.15 km) |
| Portici to Klobuck | 731.41 mi (1,177.09 km) |
| Portici to Klodzko | 673.45 mi (1,083.81 km) |
| Portici to Kluczbork | 726.27 mi (1,168.82 km) |
