| Gretna to Koscian | 5,257.71 mi (8,461.47 km) |
| Gretna to Koscielisko | 5,481.16 mi (8,821.07 km) |
| Gretna to Koscierzyna | 5,231.54 mi (8,419.36 km) |
| Gretna to Kostrzyn | 5,267.20 mi (8,476.73 km) |
| Gretna to Kostrzyn nad Odra | 5,167.85 mi (8,316.85 km) |
| Gretna to Koszalin | 5,166.20 mi (8,314.19 km) |
| Gretna to Kowary | 5,273.61 mi (8,487.06 km) |
| Gretna to Kozienice | 5,452.54 mi (8,775.01 km) |
| Gretna to Kozuchow | 5,231.12 mi (8,418.67 km) |
| Gretna to Kozy | 5,431.46 mi (8,741.09 km) |
| Gretna to Krakow | 5,453.14 mi (8,775.98 km) |
| Gretna to Krapkowice | 5,364.97 mi (8,634.09 km) |
| Gretna to Krasnik | 5,502.01 mi (8,854.64 km) |
| Gretna to Krasnystaw | 5,533.50 mi (8,905.30 km) |
| Gretna to Krosno | 5,534.44 mi (8,906.82 km) |
