| Plonsk to Kluczbork | 146.83 mi (236.30 km) |
| Plonsk to Knurow | 182.31 mi (293.41 km) |
| Plonsk to Kobylka | 40.13 mi (64.59 km) |
| Plonsk to Kokoszki | 142.06 mi (228.62 km) |
| Plonsk to Kolbuszowa | 175.11 mi (281.81 km) |
| Plonsk to Kolno | 83.89 mi (135.00 km) |
| Plonsk to Kolo | 79.59 mi (128.09 km) |
| Plonsk to Kolobrzeg | 224.81 mi (361.80 km) |
| Plonsk to Koluszki | 65.84 mi (105.96 km) |
| Plonsk to Komorniki | 157.14 mi (252.89 km) |
| Plonsk to Konin | 93.70 mi (150.80 km) |
| Plonsk to Konskie | 99.04 mi (159.39 km) |
| Plonsk to Konstancin-Jeziorna | 49.01 mi (78.87 km) |
| Plonsk to Konstantynow Lodzki | 75.51 mi (121.53 km) |
| Plonsk to Koronowo | 112.33 mi (180.78 km) |
