| Wallingford Center to Koscian | 4,023.37 mi (6,474.98 km) |
| Wallingford Center to Koscielisko | 4,242.37 mi (6,827.44 km) |
| Wallingford Center to Koscierzyna | 4,006.19 mi (6,447.34 km) |
| Wallingford Center to Kostrzyn | 4,034.52 mi (6,492.94 km) |
| Wallingford Center to Kostrzyn nad Odra | 3,932.98 mi (6,329.52 km) |
| Wallingford Center to Koszalin | 3,938.83 mi (6,338.93 km) |
| Wallingford Center to Kowary | 4,034.66 mi (6,493.15 km) |
| Wallingford Center to Kozienice | 4,222.68 mi (6,795.75 km) |
| Wallingford Center to Kozuchow | 3,994.62 mi (6,428.73 km) |
| Wallingford Center to Kozy | 4,193.41 mi (6,748.64 km) |
| Wallingford Center to Krakow | 4,216.49 mi (6,785.78 km) |
| Wallingford Center to Krapkowice | 4,127.28 mi (6,642.21 km) |
| Wallingford Center to Krasnik | 4,270.82 mi (6,873.23 km) |
| Wallingford Center to Krasnystaw | 4,303.89 mi (6,926.45 km) |
| Wallingford Center to Krosno | 4,298.87 mi (6,918.36 km) |
