| Herdecke to Kastoria | 1,000.12 mi (1,609.54 km) |
| Herdecke to Katerini | 1,053.24 mi (1,695.03 km) |
| Herdecke to Keratsini | 1,216.56 mi (1,957.86 km) |
| Herdecke to Kerkyra | 1,010.73 mi (1,626.62 km) |
| Herdecke to Kiato | 1,187.33 mi (1,910.82 km) |
| Herdecke to Kifisia | 1,216.28 mi (1,957.41 km) |
| Herdecke to Kilkis | 1,027.03 mi (1,652.84 km) |
| Herdecke to Komotini | 1,110.43 mi (1,787.06 km) |
| Herdecke to Korinthos | 1,196.84 mi (1,926.13 km) |
| Herdecke to Koropi | 1,228.38 mi (1,976.89 km) |
| Herdecke to Korydallos | 1,216.66 mi (1,958.03 km) |
| Herdecke to Kos | 1,396.59 mi (2,247.59 km) |
| Herdecke to Kozani | 1,028.39 mi (1,655.04 km) |
| Herdecke to Lagos | 1,097.97 mi (1,767.01 km) |
| Herdecke to Lamia | 1,126.97 mi (1,813.69 km) |
