| Gloucester to Karditsa | 1,440.96 mi (2,319.00 km) |
| Gloucester to Kastoria | 1,361.04 mi (2,190.39 km) |
| Gloucester to Katerini | 1,420.39 mi (2,285.90 km) |
| Gloucester to Keratsini | 1,574.22 mi (2,533.46 km) |
| Gloucester to Kerkyra | 1,353.56 mi (2,178.35 km) |
| Gloucester to Kiato | 1,539.37 mi (2,477.37 km) |
| Gloucester to Kifisia | 1,576.04 mi (2,536.40 km) |
| Gloucester to Kilkis | 1,401.76 mi (2,255.92 km) |
| Gloucester to Komotini | 1,498.40 mi (2,411.44 km) |
| Gloucester to Korinthos | 1,549.63 mi (2,493.88 km) |
| Gloucester to Koropi | 1,587.26 mi (2,554.45 km) |
| Gloucester to Korydallos | 1,574.66 mi (2,534.17 km) |
| Gloucester to Kos | 1,768.24 mi (2,845.71 km) |
| Gloucester to Kozani | 1,391.12 mi (2,238.80 km) |
| Gloucester to Lagos | 1,484.06 mi (2,388.37 km) |
