| Harrow Weald to Karlovo | 1,325.13 mi (2,132.59 km) |
| Harrow Weald to Karnobat | 1,415.07 mi (2,277.33 km) |
| Harrow Weald to Kavarna | 1,440.28 mi (2,317.91 km) |
| Harrow Weald to Kazanlak | 1,350.49 mi (2,173.40 km) |
| Harrow Weald to Knezha | 1,260.92 mi (2,029.25 km) |
| Harrow Weald to Kostinbrod | 1,253.35 mi (2,017.07 km) |
| Harrow Weald to Kozloduy | 1,235.39 mi (1,988.17 km) |
| Harrow Weald to Kyustendil | 1,254.62 mi (2,019.11 km) |
| Harrow Weald to Levski | 1,309.44 mi (2,107.34 km) |
| Harrow Weald to Lom | 1,213.36 mi (1,952.71 km) |
| Harrow Weald to Lovech | 1,301.50 mi (2,094.57 km) |
| Harrow Weald to Lukovit | 1,276.30 mi (2,054.01 km) |
| Harrow Weald to Lyaskovets | 1,344.07 mi (2,163.07 km) |
| Harrow Weald to Mezdra | 1,259.25 mi (2,026.57 km) |
| Harrow Weald to Momchilgrad | 1,396.70 mi (2,247.78 km) |
