| Gloucester to Karlovo | 1,408.35 mi (2,266.53 km) |
| Gloucester to Karnobat | 1,498.51 mi (2,411.62 km) |
| Gloucester to Kavarna | 1,523.74 mi (2,452.23 km) |
| Gloucester to Kazanlak | 1,433.79 mi (2,307.45 km) |
| Gloucester to Knezha | 1,344.26 mi (2,163.37 km) |
| Gloucester to Kostinbrod | 1,336.34 mi (2,150.63 km) |
| Gloucester to Kozloduy | 1,318.75 mi (2,122.33 km) |
| Gloucester to Kyustendil | 1,337.22 mi (2,152.05 km) |
| Gloucester to Levski | 1,392.85 mi (2,241.58 km) |
| Gloucester to Lom | 1,296.68 mi (2,086.80 km) |
| Gloucester to Lovech | 1,384.84 mi (2,228.68 km) |
| Gloucester to Lukovit | 1,359.58 mi (2,188.04 km) |
| Gloucester to Lyaskovets | 1,427.49 mi (2,297.32 km) |
| Gloucester to Mezdra | 1,342.45 mi (2,160.46 km) |
| Gloucester to Momchilgrad | 1,479.68 mi (2,381.32 km) |
