| Potters Bar to Jozefow | 909.90 mi (1,464.35 km) |
| Potters Bar to Kalisz | 779.55 mi (1,254.57 km) |
| Potters Bar to Kamien Pomorski | 642.35 mi (1,033.77 km) |
| Potters Bar to Kamienna Gora | 702.83 mi (1,131.09 km) |
| Potters Bar to Karczew | 911.01 mi (1,466.13 km) |
| Potters Bar to Kartuzy | 783.06 mi (1,260.21 km) |
| Potters Bar to Katowice | 838.52 mi (1,349.47 km) |
| Potters Bar to Kedzierzyn-Kozle | 802.16 mi (1,290.95 km) |
| Potters Bar to Kepno | 780.03 mi (1,255.33 km) |
| Potters Bar to Ketrzyn | 910.28 mi (1,464.95 km) |
| Potters Bar to Kety | 853.64 mi (1,373.80 km) |
| Potters Bar to Kielce | 898.27 mi (1,445.63 km) |
| Potters Bar to Kielczow | 747.28 mi (1,202.63 km) |
| Potters Bar to Klobuck | 825.08 mi (1,327.84 km) |
| Potters Bar to Klodzko | 734.43 mi (1,181.95 km) |
