| Grez-Doiceau to Kastoria | 1,062.92 mi (1,710.60 km) |
| Grez-Doiceau to Katerini | 1,120.05 mi (1,802.55 km) |
| Grez-Doiceau to Keratsini | 1,278.16 mi (2,057.00 km) |
| Grez-Doiceau to Kerkyra | 1,063.10 mi (1,710.89 km) |
| Grez-Doiceau to Kiato | 1,245.61 mi (2,004.62 km) |
| Grez-Doiceau to Kifisia | 1,279.11 mi (2,058.53 km) |
| Grez-Doiceau to Kilkis | 1,098.61 mi (1,768.04 km) |
| Grez-Doiceau to Komotini | 1,191.33 mi (1,917.26 km) |
| Grez-Doiceau to Korinthos | 1,255.58 mi (2,020.66 km) |
| Grez-Doiceau to Koropi | 1,290.73 mi (2,077.23 km) |
| Grez-Doiceau to Korydallos | 1,278.46 mi (2,057.49 km) |
| Grez-Doiceau to Kos | 1,467.00 mi (2,360.91 km) |
| Grez-Doiceau to Kozani | 1,092.40 mi (1,758.04 km) |
| Grez-Doiceau to Lagos | 1,177.49 mi (1,894.99 km) |
| Grez-Doiceau to Lamia | 1,187.53 mi (1,911.15 km) |
