| Plonsk to Jozefow | 49.78 mi (80.12 km) |
| Plonsk to Kalisz | 114.79 mi (184.73 km) |
| Plonsk to Kamien Pomorski | 249.32 mi (401.24 km) |
| Plonsk to Kamienna Gora | 225.83 mi (363.43 km) |
| Plonsk to Karczew | 52.74 mi (84.88 km) |
| Plonsk to Kartuzy | 147.82 mi (237.89 km) |
| Plonsk to Katowice | 173.77 mi (279.66 km) |
| Plonsk to Kedzierzyn-Kozle | 183.58 mi (295.45 km) |
| Plonsk to Kepno | 138.34 mi (222.64 km) |
| Plonsk to Ketrzyn | 108.34 mi (174.35 km) |
| Plonsk to Kety | 195.46 mi (314.57 km) |
| Plonsk to Kielce | 122.01 mi (196.36 km) |
| Plonsk to Kielczow | 171.20 mi (275.52 km) |
| Plonsk to Klobuck | 133.82 mi (215.36 km) |
| Plonsk to Klodzko | 220.97 mi (355.62 km) |
