| Potters Bar to Kluczbork | 793.59 mi (1,277.15 km) |
| Potters Bar to Knurow | 825.09 mi (1,327.86 km) |
| Potters Bar to Kobylka | 907.02 mi (1,459.70 km) |
| Potters Bar to Kokoszki | 794.88 mi (1,279.24 km) |
| Potters Bar to Kolbuszowa | 956.51 mi (1,539.36 km) |
| Potters Bar to Kolno | 932.79 mi (1,501.18 km) |
| Potters Bar to Kolo | 799.82 mi (1,287.18 km) |
| Potters Bar to Kolobrzeg | 676.62 mi (1,088.92 km) |
| Potters Bar to Koluszki | 852.60 mi (1,372.12 km) |
| Potters Bar to Komorniki | 717.89 mi (1,155.34 km) |
| Potters Bar to Konin | 784.25 mi (1,262.14 km) |
| Potters Bar to Konskie | 884.74 mi (1,423.85 km) |
| Potters Bar to Konstancin-Jeziorna | 905.39 mi (1,457.08 km) |
| Potters Bar to Konstantynow Lodzki | 832.81 mi (1,340.27 km) |
| Potters Bar to Koronowo | 767.90 mi (1,235.81 km) |
