| Gahanna to Karditsa | 5,189.90 mi (8,352.34 km) |
| Gahanna to Kastoria | 5,112.65 mi (8,228.02 km) |
| Gahanna to Katerini | 5,173.59 mi (8,326.09 km) |
| Gahanna to Keratsini | 5,322.47 mi (8,565.69 km) |
| Gahanna to Kerkyra | 5,096.48 mi (8,201.99 km) |
| Gahanna to Kiato | 5,284.79 mi (8,505.05 km) |
| Gahanna to Kifisia | 5,325.37 mi (8,570.35 km) |
| Gahanna to Kilkis | 5,156.39 mi (8,298.40 km) |
| Gahanna to Komotini | 5,251.71 mi (8,451.80 km) |
| Gahanna to Korinthos | 5,295.36 mi (8,522.06 km) |
| Gahanna to Koropi | 5,336.03 mi (8,587.51 km) |
| Gahanna to Korydallos | 5,323.08 mi (8,566.67 km) |
| Gahanna to Kos | 5,521.46 mi (8,885.94 km) |
| Gahanna to Kozani | 5,143.14 mi (8,277.08 km) |
| Gahanna to Lagos | 5,237.92 mi (8,429.61 km) |
