| Harrow to Karditsa | 1,360.29 mi (2,189.17 km) |
| Harrow to Kastoria | 1,279.87 mi (2,059.75 km) |
| Harrow to Katerini | 1,338.77 mi (2,154.54 km) |
| Harrow to Keratsini | 1,493.58 mi (2,403.68 km) |
| Harrow to Kerkyra | 1,274.02 mi (2,050.34 km) |
| Harrow to Kiato | 1,459.22 mi (2,348.39 km) |
| Harrow to Kifisia | 1,495.21 mi (2,406.31 km) |
| Harrow to Kilkis | 1,319.54 mi (2,123.60 km) |
| Harrow to Komotini | 1,415.38 mi (2,277.84 km) |
| Harrow to Korinthos | 1,469.42 mi (2,364.80 km) |
| Harrow to Koropi | 1,506.52 mi (2,424.51 km) |
| Harrow to Korydallos | 1,493.99 mi (2,404.34 km) |
| Harrow to Kos | 1,686.51 mi (2,714.17 km) |
| Harrow to Kozani | 1,309.83 mi (2,107.97 km) |
| Harrow to Lagos | 1,401.15 mi (2,254.93 km) |
