| Wallingford Center to Jozefow | 4,190.84 mi (6,744.51 km) |
| Wallingford Center to Kalisz | 4,087.63 mi (6,578.40 km) |
| Wallingford Center to Kamien Pomorski | 3,894.61 mi (6,267.77 km) |
| Wallingford Center to Kamienna Gora | 4,042.62 mi (6,505.96 km) |
| Wallingford Center to Karczew | 4,193.23 mi (6,748.34 km) |
| Wallingford Center to Kartuzy | 4,006.92 mi (6,448.52 km) |
| Wallingford Center to Katowice | 4,174.23 mi (6,717.78 km) |
| Wallingford Center to Kedzierzyn-Kozle | 4,140.20 mi (6,663.02 km) |
| Wallingford Center to Kepno | 4,100.04 mi (6,598.38 km) |
| Wallingford Center to Ketrzyn | 4,127.80 mi (6,643.06 km) |
| Wallingford Center to Kety | 4,194.78 mi (6,750.85 km) |
| Wallingford Center to Kielce | 4,213.62 mi (6,781.16 km) |
| Wallingford Center to Kielczow | 4,074.43 mi (6,557.16 km) |
| Wallingford Center to Klobuck | 4,148.39 mi (6,676.20 km) |
| Wallingford Center to Klodzko | 4,077.96 mi (6,562.84 km) |
