| Heerlen to Karditsa | 1,107.41 mi (1,782.20 km) |
| Heerlen to Kastoria | 1,024.27 mi (1,648.41 km) |
| Heerlen to Katerini | 1,079.99 mi (1,738.07 km) |
| Heerlen to Keratsini | 1,240.22 mi (1,995.93 km) |
| Heerlen to Kerkyra | 1,028.43 mi (1,655.09 km) |
| Heerlen to Kiato | 1,208.89 mi (1,945.53 km) |
| Heerlen to Kifisia | 1,240.70 mi (1,996.72 km) |
| Heerlen to Kilkis | 1,056.77 mi (1,700.71 km) |
| Heerlen to Komotini | 1,146.26 mi (1,844.73 km) |
| Heerlen to Korinthos | 1,218.70 mi (1,961.31 km) |
| Heerlen to Koropi | 1,252.52 mi (2,015.73 km) |
| Heerlen to Korydallos | 1,240.44 mi (1,996.30 km) |
| Heerlen to Kos | 1,425.91 mi (2,294.79 km) |
| Heerlen to Kozani | 1,053.34 mi (1,695.19 km) |
| Heerlen to Lagos | 1,132.89 mi (1,823.22 km) |
