| Portici to Koscielisko | 643.88 mi (1,036.23 km) |
| Portici to Koscierzyna | 934.03 mi (1,503.17 km) |
| Portici to Kostrzyn | 811.16 mi (1,305.43 km) |
| Portici to Kostrzyn nad Odra | 813.28 mi (1,308.84 km) |
| Portici to Koszalin | 928.40 mi (1,494.11 km) |
| Portici to Kowary | 692.70 mi (1,114.79 km) |
| Portici to Kozienice | 819.08 mi (1,318.18 km) |
| Portici to Kozuchow | 757.57 mi (1,219.19 km) |
| Portici to Kozy | 666.93 mi (1,073.32 km) |
| Portici to Krakow | 693.29 mi (1,115.74 km) |
| Portici to Krapkowice | 688.95 mi (1,108.75 km) |
| Portici to Krasnik | 792.83 mi (1,275.94 km) |
| Portici to Krasnystaw | 819.58 mi (1,318.98 km) |
| Portici to Krosno | 709.78 mi (1,142.28 km) |
| Portici to Krosno Odrzanskie | 775.62 mi (1,248.23 km) |
