| Wallingford Center to Kluczbork | 4,119.06 mi (6,628.99 km) |
| Wallingford Center to Knurow | 4,163.28 mi (6,700.15 km) |
| Wallingford Center to Kobylka | 4,182.54 mi (6,731.15 km) |
| Wallingford Center to Kokoszki | 4,016.62 mi (6,464.12 km) |
| Wallingford Center to Kolbuszowa | 4,278.60 mi (6,885.73 km) |
| Wallingford Center to Kolno | 4,170.73 mi (6,712.15 km) |
| Wallingford Center to Kolo | 4,093.23 mi (6,587.41 km) |
| Wallingford Center to Kolobrzeg | 3,917.60 mi (6,304.76 km) |
| Wallingford Center to Koluszki | 4,151.77 mi (6,681.63 km) |
| Wallingford Center to Komorniki | 4,019.26 mi (6,468.38 km) |
| Wallingford Center to Konin | 4,079.12 mi (6,564.70 km) |
| Wallingford Center to Konskie | 4,193.95 mi (6,749.51 km) |
| Wallingford Center to Konstancin-Jeziorna | 4,188.37 mi (6,740.53 km) |
| Wallingford Center to Konstantynow Lodzki | 4,134.50 mi (6,653.83 km) |
| Wallingford Center to Koronowo | 4,030.41 mi (6,486.31 km) |
