| Gretna to Karditsa | 5,958.57 mi (9,589.39 km) |
| Gretna to Kastoria | 5,883.93 mi (9,469.27 km) |
| Gretna to Katerini | 5,946.48 mi (9,569.94 km) |
| Gretna to Keratsini | 6,089.97 mi (9,800.86 km) |
| Gretna to Kerkyra | 5,861.82 mi (9,433.69 km) |
| Gretna to Kiato | 6,050.51 mi (9,737.35 km) |
| Gretna to Kifisia | 6,093.71 mi (9,806.88 km) |
| Gretna to Kilkis | 5,932.28 mi (9,547.08 km) |
| Gretna to Komotini | 6,032.61 mi (9,708.55 km) |
| Gretna to Korinthos | 6,061.22 mi (9,754.60 km) |
| Gretna to Koropi | 6,103.87 mi (9,823.23 km) |
| Gretna to Korydallos | 6,090.71 mi (9,802.06 km) |
| Gretna to Kos | 6,293.31 mi (10,128.11 km) |
| Gretna to Kozani | 5,914.72 mi (9,518.82 km) |
| Gretna to Lagos | 6,018.03 mi (9,685.08 km) |
