| Grevenbroich to Kastoria | 1,012.97 mi (1,630.22 km) |
| Grevenbroich to Katerini | 1,067.67 mi (1,718.25 km) |
| Grevenbroich to Keratsini | 1,229.22 mi (1,978.23 km) |
| Grevenbroich to Kerkyra | 1,019.74 mi (1,641.12 km) |
| Grevenbroich to Kiato | 1,198.73 mi (1,929.17 km) |
| Grevenbroich to Kifisia | 1,229.40 mi (1,978.52 km) |
| Grevenbroich to Kilkis | 1,043.24 mi (1,678.94 km) |
| Grevenbroich to Komotini | 1,130.34 mi (1,819.10 km) |
| Grevenbroich to Korinthos | 1,208.42 mi (1,944.77 km) |
| Grevenbroich to Koropi | 1,241.33 mi (1,997.73 km) |
| Grevenbroich to Korydallos | 1,229.39 mi (1,978.52 km) |
| Grevenbroich to Kos | 1,412.69 mi (2,273.50 km) |
| Grevenbroich to Kozani | 1,041.74 mi (1,676.52 km) |
| Grevenbroich to Lagos | 1,117.33 mi (1,798.16 km) |
| Grevenbroich to Lamia | 1,139.15 mi (1,833.29 km) |
